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feat: SFT training pipeline with demo conversion, Lambda Labs integration, and data persistence (#29)
* feat(training): add demo conversion pipeline for ms-swift SFT format Convert annotated demo JSON files to JSONL training data compatible with ms-swift for Qwen3-VL fine-tuning. Handles coordinate conversion from [0,1] to [0,1000] range, generates <think> blocks from observation and intent fields, and accumulates action history across steps. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * feat(training): add screenshot linking via mapping file Support --mapping flag for pre-computed screenshot mapping JSON that maps task_id -> {step_index -> screenshot_path}. This correctly handles the coalesced step-to-raw-capture mapping (where step indices skip due to merging). Also adds --captures-dir with DB-based fallback and DOUBLE_CLICK/RIGHT_CLICK parsing. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(training): align SFT format with inference prompt and add validation - Add system role message to training conversations matching qwen3vl_agent.SYSTEM_PROMPT - Add "Output exactly one action" / thinking instruction to user message matching _build_prompt() output - Add coordinate range validation warning for values outside [0, 1] - Add input schema validation for required demo/step fields - Remove broken _resolve_screenshots_from_db() and _resolve_screenshots_direct() fallbacks that produced silently wrong mappings for coalesced demos - Remove --screenshot-dir CLI arg (unreliable for coalesced demos) - Keep --mapping (recommended) and capture API as screenshot resolution Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * feat(training): add JSONL training pipeline with bundle support Align convert_demos output with internal SFT format (images + messages), add train_from_jsonl() loader, --jsonl flag to train.py, --bundle flag to convert_demos and Lambda Labs train command. Enables training on annotated demo data without Episode objects. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(training): add TRL callback, 4-bit quantization, early stopping - Add OpenAdaptCallback for training_log.json output + early stop on loss - Fix _load_standard_model to use BitsAndBytesConfig for 4-bit quantization - Use AutoModelForImageTextToText (supports Qwen3-VL) instead of Qwen2VL class - Switch demo config to 2B model for fast iteration on A10 - Hide Azure ML Jobs panel when cloud_provider is not azure - Fix Lambda setup: remove uv.sources before uv sync on remote Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(cloud): use git archive for code sync, fix callback MRO Replace rsync with `git archive HEAD | ssh tar` in sync_local_code() to send only committed tracked files (~10MB vs ~1.8GB with binary artifacts). Fix callback class MRO: _OpenAdaptCallback must precede TrainerCallback so our on_log/on_train_begin override the no-op base implementations. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * refactor(training): consolidate duplicated SFTTrainer setup Extract _run_sft_training() shared by train_with_trl() and train_from_jsonl(), eliminating ~80 lines of duplicated SFTConfig, SFTTrainer instantiation, and training loop code. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * feat(training): add plateau-based early stopping Add early_stop_min_delta and early_stop_plateau_patience to stop training when loss stops improving by at least min_delta for N consecutive steps. Works alongside the existing absolute threshold. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * docs: add GPU hosting options and training pipeline gap analysis GPU hosting options covers 24 platforms ranked by value for open-source projects needing free/credited GPU compute for VLM fine-tuning. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * docs: add Qwen3-VL-2B training results analysis Detailed analysis of first fine-tuning run: 27.24 → 9.77 loss (64% reduction) over 50 steps on 20 annotated WAA demo samples. Includes per-epoch breakdown, compute efficiency metrics, and recommendations for future training runs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix: remove absolute paths from repo, fix LoRA task_type, add tests - Remove screenshot_mapping.json (has absolute local paths), add to .gitignore, add screenshot_mapping.example.json instead - Fix LoRA task_type: always use CAUSAL_LM (Qwen-VL is decoder-only, not encoder-decoder like T5/BART that needs SEQ_2_SEQ_LM) - Add 57 tests for convert_demos (action parsing, coordinate conversion, step conversion, validation, bundle creation) and training callback (log writing, threshold early stopping, plateau detection) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix: address self-review issues (config wiring, security, tests) - Wire lr_scheduler_type, weight_decay, max_grad_norm, target_modules from YAML config through to SFTConfig (were silently ignored) - Fix command injection in lambda_labs.py via shlex.quote() - Fix callback writing loss=0 on non-loss log events (track _last_loss) - Fix WAIT() mapping to wait() instead of finished() in convert_demos - Fix CI: add --no-sources to uv sync for uv.sources compatibility - Add test for non-loss log event callback behavior - Update SYSTEM_PROMPT comment (remove stale cross-reference) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * ci: fix uv.sources with UV_NO_SOURCES env var, skip integration tests UV_NO_SOURCES=1 covers uv sync, uv run ruff, and uv run pytest. Integration tests require openadapt_evals which is not a dependency. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * style: format annotate.py with ruff Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * feat: auto-generate training plots, persist data with checkpoint - Add plot_training.py: generates loss curve, LR schedule, and combined plots from training_log.json using matplotlib - Copy training_log.json + plots into checkpoint directory after training so artifacts are self-contained and never lost - Add periodic rsync of training_log.json during Lambda training (every 5 min) so data survives instance interruption - Replace ASCII loss curve in training results doc with real PNG plots - Add reconstructed training_log.json from Qwen3-VL-2B demo run Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * test: add tests for plot generation and checkpoint co-location 11 tests covering: - Loss plot generation (with/without LR data) - Output directory creation and defaults - Empty data handling - Epoch boundary rendering - Real training log validation - Checkpoint co-location of log + plots Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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.github/workflows/test.yml

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jobs:
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test:
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runs-on: ${{ matrix.os }}
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env:
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UV_NO_SOURCES: "1"
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strategy:
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matrix:
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os: [ubuntu-latest, macos-latest]
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run: uv run ruff format --check openadapt_ml/
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- name: Run pytest
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run: uv run pytest tests/ -v
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run: uv run pytest tests/ -v --ignore=tests/integration

.gitignore

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# Auto-generated files
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RESOURCES.md
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azure_logs/
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# User-specific screenshot mappings (contains absolute paths)
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screenshot_mapping.json

configs/qwen3vl_demo.yaml

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model:
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name: Qwen/Qwen3-VL-2B-Instruct # 2B for fast iteration; upgrade to 8B once pipeline is validated
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load_in_4bit: true
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lora:
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r: 16
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lora_alpha: 32
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lora_dropout: 0.0
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bias: none
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target_modules:
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- q_proj
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- v_proj
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- k_proj
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- o_proj
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# task_type is always CAUSAL_LM (set in trl_trainer.py, not configurable)
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weights_path: checkpoints/qwen3vl2b_demo_lora
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training:
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num_train_epochs: 10 # 20 samples, need more passes
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per_device_train_batch_size: 1
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gradient_accumulation_steps: 4
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learning_rate: 5.0e-5
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lr_scheduler_type: cosine
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warmup_ratio: 0.1
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weight_decay: 0.01
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max_grad_norm: 0.5
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logging_steps: 1
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save_strategy: epoch
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early_stop_loss: 1.0
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early_stop_patience: 5
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early_stop_min_delta: 0.1 # Stop if loss doesn't improve by at least 0.1
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early_stop_plateau_patience: 5 # for 5 consecutive steps

docs/gpu_hosting_options.md

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# GPU Compute Hosting Options for OpenAdapt.ai
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**Context**: Fine-tuning Qwen3-VL (2B-8B), MIT-licensed open source project, no budget.
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**Hardware requirements**:
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- Qwen3-VL 2B with QLoRA: ~8-10 GB VRAM (fits on T4 16GB)
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- Qwen3-VL 8B with QLoRA: ~16-24 GB VRAM (needs A10/A100/L4)
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- Unsloth reduces VRAM by ~60% and speeds training 1.7x
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---
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## TIER 1: Apply Immediately (Highest Value)
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### 1. AWS Cloud Credits for Open Source
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- **Status**: ACTIVE (running since 2019, reaffirmed April 2025)
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- **Credits**: Varies per project; AWS has given millions across 200+ OSS projects
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- **GPUs**: Full AWS fleet (P4d/P5 with A100/H100, G5 with A10G, G6 with L4)
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- **Eligibility**: OSI-approved license (MIT qualifies), active AWS account, valid payment method
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- **Strings attached**: Credits for project infrastructure, not personal use
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- **How to apply**: https://aws.amazon.com/blogs/opensource/aws-promotional-credits-open-source-projects/
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- **Why #1**: Most directly relevant. MIT-licensed, established on GitHub — this program was designed for projects like OpenAdapt.
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### 2. Google TPU Research Cloud (TRC)
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- **Status**: ACTIVE (rolling admissions)
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- **Credits**: Free access to 1,000+ Cloud TPU devices
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- **Hardware**: Cloud TPUs (v2, v3, v4) — not GPUs, but excellent for VLM training via JAX/PyTorch XLA
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- **Eligibility**: Anyone can apply; no academic affiliation required
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- **Strings attached**: Must share research publicly (blog posts, open-source code, or papers)
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- **How to apply**: https://sites.research.google/trc/
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- **Why #2**: Completely free, rolling admissions. Sharing publicly is already met by MIT license.
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### 3. NVIDIA Inception Program (Unlocks Multi-Platform Credits)
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- **Status**: ACTIVE, free to join
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- **Direct benefits**: Free DLI training credits, SDK access, preferred hardware pricing
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- **Indirect benefits**:
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- AWS Activate credits: $25,000-$100,000
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- Nebius AI Lift: up to $150,000 in cloud credits
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- DGX Cloud Innovation Lab: 2 months of DGX Cloud access (select members)
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- **Eligibility**: At least one developer, working website, officially incorporated, <10 years old
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- **Strings attached**: No equity required
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- **How to apply**: https://www.nvidia.com/en-us/startups/
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- **Why #3**: Force multiplier. Free to join, unlocks $25K-$150K across partners.
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### 4. Microsoft for Startups (Azure Credits)
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- **Status**: ACTIVE (restructured July 2025)
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- **Credits**: $1,000 immediately (no application), up to $5,000 with business verification, up to $150,000 for investor-backed startups
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- **GPUs**: Azure NC/ND series (A100, H100, V100, T4)
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- **Eligibility**: No funding required for $5K tier
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- **Strings attached**: Credits expire (90-180 days)
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- **How to apply**: https://www.microsoft.com/en-us/startups (self-service sign-up)
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- **Why #4**: $1K-$5K with no funding needed. Quick to get started.
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---
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## TIER 2: Strong Options (Apply Soon)
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### 5. Google for Startups Cloud Program
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- **Credits**: $2,000 (pre-funding), up to $100,000 (VC-backed), up to $350,000 (AI-first track)
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- **GPUs**: Full GCP fleet (A100, H100, L4, T4, TPU)
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- **Eligibility**: Start tier requires no funding
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- **How to apply**: https://startup.google.com/cloud/
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### 6. Lambda Labs Research Grant
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- **Credits**: Up to $5,000 in Cloud Credits plus mentoring
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- **GPUs**: Lambda Cloud fleet (A100, H100, A6000)
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- **Eligibility**: Academic researchers or published research projects; 50% academic discount also available
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- **How to apply**: https://lambda.ai/research
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### 7. fal.ai Research Grants
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- **Credits**: Free compute (amount per project)
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- **Eligibility**: Open to anyone — no formal degree required
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- **How to apply**: Email grants@fal.ai with project description. See https://fal.ai/grants
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### 8. AMD AI Developer Program & Developer Cloud
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- **Credits**: $100 free (~50 hours) to start; additional credits for public projects
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- **GPUs**: AMD Instinct MI300X (192GB VRAM)
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- **Note**: Check ROCm compatibility with your training stack
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- **How to apply**: https://www.amd.com/en/developer/resources/cloud-access/amd-developer-cloud.html
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### 9. a16z Open Source AI Grants
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- **Type**: Cash grants (not investment, not equity)
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- **Eligibility**: Open-source AI developers, hackers, researchers, small teams
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- **How to apply**: Watch https://a16z.com/supporting-the-open-source-ai-community/ for batch announcements
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---
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## TIER 3: Free Platforms (Use Today, No Application)
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| Platform | GPU | Free Limits | Best For |
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|----------|-----|-------------|----------|
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| [Kaggle](https://kaggle.com) | T4/P100 | 30 hrs/week, background exec | **Training Qwen3-VL 2B now** |
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| [Google Colab](https://colab.research.google.com) | T4 | 15-30 hrs/week | Backup training |
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| [Lightning.ai](https://lightning.ai) | T4 | 22 hrs/month | Development |
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| [SageMaker Studio Lab](https://studiolab.sagemaker.aws) | T4 | 4hr sessions, 8hr/day, no credit card | Experimentation |
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| [Modal](https://modal.com) | A100/H100 | $30/month credit (~2hr A100) | Burst training |
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| [Paperspace Gradient](https://paperspace.com/gradient/free-gpu) | M4000 (8GB) | 6hr sessions, restartable | Too small for VLM training |
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---
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## TIER 4: Research/Academic Programs
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| Program | Credits | Eligibility |
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|---------|---------|-------------|
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| [NSF ACCESS](https://access-ci.org) | Large GPU allocations (thousands of hours) | US institution PI |
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| [Amazon Research Awards](https://amazon.science/research-awards) | $70K funds + $50K AWS credits | Academic institutions |
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| [NVIDIA Academic Hardware Grant](https://academicgrants.nvidia.com/academicgrantprogram/s/Application) | Physical GPU hardware | Faculty at PhD-granting institutions |
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| [HOSTKEY GPU Grant](https://hostkey.com/about-us/grants-for-scientific-projects-and-startups/) | Free GPU server time | Research/startup proposals (monthly windows) |
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---
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## TIER 5: Inference Hosting (Post-Training)
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| Platform | Free Tier | Notes |
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|----------|-----------|-------|
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| [HuggingFace ZeroGPU](https://huggingface.co/docs/hub/en/spaces-zerogpu) | H200 inference, daily quota | Best free option for deploying fine-tuned model |
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| [Replicate](https://replicate.com) | Limited free runs | Deploying custom models as APIs |
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| [Fireworks AI](https://fireworks.ai) | 10 RPM free, $1 credit | Supports Qwen models |
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| [Together AI](https://together.ai) | No free tier ($5 min) | Startup accelerator offers up to $50K |
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---
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## Recommended Action Plan
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| Phase | Action | Expected Value | Timeline |
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|-------|--------|---------------|----------|
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| **Today** | Sign up Microsoft for Startups | $1K-$5K Azure | Same day |
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| **Today** | Start training on Kaggle | 30 hrs/week free T4 | Immediate |
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| **This week** | Apply AWS OSS Credits | $5K-$50K+ | 2-4 weeks |
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| **This week** | Apply Google TRC | Free TPU access | 1-2 weeks |
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| **This week** | Email fal.ai (grants@fal.ai) | Free compute | 1-2 weeks |
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| **This month** | Join NVIDIA Inception | Unlocks $25K-$150K partner credits | 2-4 weeks |
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| **This month** | Apply Google for Startups | $2K-$350K | 1-2 weeks |
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| **This month** | Apply Lambda Research Grant | $5K | 2-4 weeks |
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| **Post-training** | Deploy on HuggingFace ZeroGPU | Free H200 inference | When model ready |
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---
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*Research conducted February 2026. Verify program availability before applying.*

docs/training_pipeline_gaps.md

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# Training Pipeline Gaps & Plan
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## Current State (Feb 23, 2026)
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First successful JSONL training launch on Lambda Labs (Qwen3-VL-8B, A10).
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Pipeline works end-to-end: `convert_demos --bundle` -> `train.py --jsonl` -> Lambda launch.
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### What Works
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- Bundle creation (JSONL + images with relative paths)
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- JSONL loader in TRL trainer
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- Lambda Labs instance launch, code sync, bundle upload
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- Checkpoint save (TRL SFTTrainer auto-saves per epoch + final)
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- Dashboard with Lambda cloud badge, cost display, setup progress
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- Checkpoint download via rsync
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### What's Missing
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## Gap 1: TRL Training Callback (logging + early stopping)
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**Problem**: `train_from_jsonl()` uses TRL's SFTTrainer which logs to stdout/TensorBoard
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but NOT to our `training_log.json`. The Lambda polling loop in `lambda_labs.py` reads
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`training_log.json` for dashboard updates — so the dashboard shows 0 progress.
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Also, `early_stop_loss` is in YAML config but not wired to a TRL callback.
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**Fix**: Add a `TrainerCallback` subclass to `trl_trainer.py`:
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- `on_log()`: Write step/epoch/loss/lr to `training_log.json`
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- `on_log()`: Check `early_stop_loss` threshold, set `trainer.state.should_training_stop = True`
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- ~40 lines
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**Files**: `openadapt_ml/training/trl_trainer.py`
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## Gap 2: Cost Persistence
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**Problem**: Cost is only computed in dashboard JavaScript. Not saved to `training_log.json`.
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After instance terminates, cost is lost.
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**Fix**: Write `cost_per_hour`, `total_cost`, `instance_type` to `training_log.json` in the
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TRL callback (same one from Gap 1). The callback can read instance_type from an env var
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or config field.
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**Files**: `openadapt_ml/training/trl_trainer.py` (extend callback)
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## Gap 3: Post-Training Eval Automation
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**Problem**: After training completes on Lambda, there's no automatic evaluation. User must
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manually run `eval_policy.py` or `compare.py`.
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**Fix**: Add `--eval` flag to `train.py` that runs eval after training completes:
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1. Load the saved checkpoint
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2. Run prediction on each training sample (sanity check: can it reproduce training data?)
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3. Write results to `eval_results.json` alongside checkpoint
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4. ~30 lines in `train.py`, reusing `eval_policy.py` logic
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For Lambda: add eval step to `run_training()` command string when `--eval` is passed.
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**Files**: `openadapt_ml/scripts/train.py`, `openadapt_ml/cloud/lambda_labs.py`
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## Gap 4: Training Speed (Unsloth on Lambda)
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**Problem**: 8B model without Unsloth = 569s/step on A10. With Unsloth should be ~100-200s/step.
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Current Lambda setup installs deps with `uv sync` which doesn't include Unsloth (it's optional
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and needs special install: `pip install unsloth`).
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**Fix**: Add Unsloth install to Lambda setup script. Remove `--no-unsloth` from default
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Lambda train command. Test Unsloth + Qwen3-VL-8B on A10.
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Alternative: Use 2B model (`Qwen/Qwen3-VL-2B-Instruct`) which is 4x faster without Unsloth.
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**Files**: `openadapt_ml/cloud/lambda_labs.py` (setup_instance), `configs/qwen3vl_demo.yaml`
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## Gap 5: Auto-Terminate After Training
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**Problem**: When training is launched manually (SSH nohup), the Lambda instance keeps running
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after training completes. No auto-terminate.
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**Fix**: The automated `train` command already handles this when it's used end-to-end.
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The issue is only when we SSH in manually. Not a code gap — operational.
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## Priority Order
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1. **Gap 4** (speed) — blocking: current run takes 8 hours, wastes money
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2. **Gap 1** (callback) — high: dashboard shows nothing during training
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3. **Gap 3** (eval) — medium: need eval to know if training worked
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4. **Gap 2** (cost) — low: nice-to-have for tracking spend
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5. **Gap 5** (terminate) — low: operational
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## Immediate Action
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Kill current slow run, switch to 2B model, relaunch. Fix Gaps 1+4 first.

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