[model-inventory] Model alias inventory update - 2026-05-11

[github-actions]

Summary

Daily model inventory analysis for 2026-05-11. Copilot API returned HTTP 400 (no API key configured), so only Anthropic, Gemini, and OpenAI were queried directly. Existing aliases provide good coverage for known families. Key findings: dated Anthropic model IDs (e.g. claude-haiku-4-5-20251001) are missing from model_multipliers.json; several Gemini *-latest aliases and specialty models lack multipliers; a new gemma alias would improve Gemma model coverage.

• Providers queried: Anthropic, Gemini, OpenAI, Copilot (error)
• Total models found: 261 (9 Anthropic, 50 Gemini, 202 OpenAI)
• Proposed alias changes: 1 (add gemma)
• Multiplier gaps found: ~12

Provider Model Counts

Provider	Models Available	Status
anthropic	9	✅ ok
gemini	50	✅ ok
openai	202	✅ ok
copilot	0	❌ HTTP 400 (API key not configured)

Raw API Fields Discovered

Anthropic (anthropic-models/models.json):

• id, display_name, created_at, type — no token limits or billing fields in this response (likely requires a different endpoint)

Gemini (gemini-models/models.json):

• id, display_name, description — human-readable
• input_token_limit, output_token_limit — useful proxy for model tier classification
• supported_generation_methods — e.g. generateContent, generateAnswer, countTokens
• version — internal version string

OpenAI (openai-models/models.json):

• id, owned_by — minimal fields; no token limits or pricing in this response
• Model naming conventions (-mini, -nano, -pro, .1, .2, etc.) encode tier/capability

Copilot Billing Docs (copilot-billing-multipliers/multipliers.json):

• Model, Current multiplier, New multiplier — authoritative ET multiplier table from GitHub docs page
• All major Copilot-proxied models are listed with pending pricing changes

Token Multiplier Analysis

Missing from model_multipliers.json

Model ID	Provider	Inferred Multiplier	Basis
claude-haiku-4-5-20251001	anthropic	0.33	Dated variant of claude-haiku-4-5; billing docs list Haiku 4.5 = 0.33
claude-opus-4-20250514	anthropic	5.0	Dated variant of claude-opus-4; matches stored claude-opus-4 = 5.0
claude-opus-4-1-20250805	anthropic	5.0	Dated variant of claude-opus-4-1; matches stored claude-opus-4-1 = 5.0
claude-opus-4-5-20251101	anthropic	15.0	Dated variant of claude-opus-4-5; billing docs list Opus 4.5 new = 15
claude-sonnet-4-20250514	anthropic	1.0	Dated variant of claude-sonnet-4; matches stored = 1.0
claude-sonnet-4-5-20250929	anthropic	6.0	Dated variant of claude-sonnet-4-5; billing docs list Sonnet 4.5 new = 6
gemini-flash-latest	gemini	0.2	Alias to current Gemini 2.5 Flash; inferred from token limits & Flash tier
gemini-flash-lite-latest	gemini	0.1	Alias to current Gemini Flash Lite; inferred from Flash Lite tier
gemini-pro-latest	gemini	1.0	Alias to current Gemini 2.5 Pro; inferred from Pro tier
deep-research-pro-preview-12-2025	gemini	1.0	Deep research Pro variant; in line with stored deep-research entries
gemini-robotics-er-1.5-preview	gemini	~0.2	Experimental robotics model; similar input/output limits to 2.5 Flash
gemini-robotics-er-1.6-preview	gemini	~0.2	Experimental robotics model; similar input/output limits to 2.5 Flash

Stale entries (no longer returned by any API)

The following model IDs appear in model_multipliers.json but were not returned by any live provider API in this run. Note: Copilot was not queryable, so these may still be active there.

• claude-3-5-haiku, claude-3-haiku (Anthropic — older generation)
• claude-3-sonnet, claude-3-5-sonnet, claude-3-7-sonnet (Anthropic — older generations)
• claude-3-opus, claude-3-5-opus (Anthropic — older generations)
• gpt-4, gpt-4-turbo (OpenAI — not returned by this API listing; may still be accessible)
• gemini-1.5-pro, gemini-1.5-flash (Gemini — older generation, not returned)
• gemini-2.0-flash-lite (Gemini — returned as gemini-2.0-flash-lite-001 but not bare ID)

⚠️ These should not be removed until confirmed stale — they may still be valid Copilot proxy targets.

Inferred vs stored discrepancies

No discrepancies found between the official GitHub billing docs (New multiplier column) and model_multipliers.json for models present in both. All multipliers match.

Proposed Alias Updates

1. Add gemma alias

What: New alias gemma for Google's Gemma open models available via Gemini API.

Why: gemma-4-26b-a4b-it and gemma-4-31b-it are present in the Gemini API inventory and have entries in model_multipliers.json (0.1 and 0.2 respectively), but no alias covers them. The existing gemini-* patterns do not match gemma-* IDs.

Syntax:

{
  "gemma": [
    "copilot/gemma*",
    "google/gemma*",
    "gemini/gemma*"
  ]
}

Full Model Lists by Provider

Anthropic (9 models):

claude-haiku-4-5-20251001
claude-opus-4-1-20250805
claude-opus-4-20250514
claude-opus-4-5-20251101
claude-opus-4-6
claude-opus-4-7
claude-sonnet-4-20250514
claude-sonnet-4-5-20250929
claude-sonnet-4-6

Gemini (50 models — text/generation models only shown):

aqa
deep-research-max-preview-04-2026
deep-research-preview-04-2026
deep-research-pro-preview-12-2025
gemini-2.0-flash
gemini-2.0-flash-001
gemini-2.0-flash-lite
gemini-2.0-flash-lite-001
gemini-2.5-computer-use-preview-10-2025
gemini-2.5-flash
gemini-2.5-flash-image
gemini-2.5-flash-lite
gemini-2.5-flash-native-audio-latest
gemini-2.5-flash-native-audio-preview-09-2025
gemini-2.5-flash-native-audio-preview-12-2025
gemini-2.5-flash-preview-tts
gemini-2.5-pro
gemini-2.5-pro-preview-tts
gemini-3-flash-preview
gemini-3-pro-image-preview
gemini-3-pro-preview
gemini-3.1-flash-image-preview
gemini-3.1-flash-lite
gemini-3.1-flash-lite-preview
gemini-3.1-flash-live-preview
gemini-3.1-flash-tts-preview
gemini-3.1-pro-preview
gemini-3.1-pro-preview-customtools
gemini-embedding-001
gemini-embedding-2
gemini-embedding-2-preview
gemini-flash-latest
gemini-flash-lite-latest
gemini-pro-latest
gemini-robotics-er-1.5-preview
gemini-robotics-er-1.6-preview
gemma-4-26b-a4b-it
gemma-4-31b-it
nano-banana-pro-preview
(+ image/video/audio generation models)

OpenAI (202 models — notable text models):

gpt-4, gpt-4-turbo, gpt-4o, gpt-4o-mini
gpt-4.1, gpt-4.1-mini, gpt-4.1-nano
gpt-5, gpt-5-mini, gpt-5-nano, gpt-5-pro, gpt-5-codex
gpt-5.1, gpt-5.1-codex, gpt-5.1-codex-mini, gpt-5.1-codex-max
gpt-5.2, gpt-5.2-codex, gpt-5.2-pro
gpt-5.3-codex
gpt-5.4, gpt-5.4-mini, gpt-5.4-nano, gpt-5.4-pro
gpt-5.5, gpt-5.5-pro
o1, o1-pro, o3, o3-mini, o3-pro, o4-mini
o3-deep-research, o4-mini-deep-research
(+ audio, image, embedding, realtime, and alpha models)

Notes

• Copilot API unavailable: The Copilot API returned HTTP 400. Many models in model_multipliers.json are Copilot proxy models; their presence cannot be verified this run.
• Dated Anthropic IDs: Anthropic's API returns versioned IDs like claude-haiku-4-5-20251001. Consider adding these to model_multipliers.json as aliases for the base IDs (e.g. claude-haiku-4-5-20251001 → 0.33).
• gemini-*-latest pointers: These are pointer aliases; their multiplier should match whatever model they currently resolve to (tracked by Gemini).
• nano-banana-pro-preview: Likely an internal/experimental Gemini model; no multiplier recommended until stable.
• GPT-5.5 multiplier: Billing docs list "TBD" for New multiplier; current stored value of 7.5 is based on Current multiplier and should be revisited when Google finalizes pricing.
• All existing alias patterns are well-formed: sonnet, haiku, opus, gpt-5*, reasoning, gemini-flash, gemini-pro, deep-research all cover live models correctly.

Generated by Daily Model Inventory Checker · ● 7.8M · ◷

• expires on May 18, 2026, 12:16 AM UTC