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Add Claude Fable 5 model support #101

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Merged
adambalogh merged 1 commit into from
Jun 9, 2026
Merged

Add Claude Fable 5 model support #101

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2 changes: 1 addition & 1 deletion CLAUDE.md
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,7 @@ Server configuration:

Model name prefixes determine routing:
- **OpenAI**: gpt-4.1, gpt-5, gpt-5-mini, gpt-5.2, o4-mini
- **Anthropic**: claude-sonnet-4-0/4-5/4-6, claude-haiku-4-5, claude-opus-4-5/4-6, claude-3-7-sonnet, claude-3-5-haiku
- **Anthropic**: claude-sonnet-4-0/4-5/4-6, claude-haiku-4-5, claude-opus-4-5/4-6/4-7/4-8, claude-fable-5, claude-3-7-sonnet, claude-3-5-haiku
- **Google**: gemini-2.5-flash, gemini-2.5-flash-lite, gemini-2.5-pro, gemini-3-pro-preview, gemini-3-flash-preview, gemini-3.1-pro-preview, gemini-3.1-flash-lite-preview, gemini-3.5-flash; image generation: gemini-2.5-flash-image, gemini-3.1-flash-image
- **xAI**: grok-2, grok-3, grok-3-mini, grok-4, grok-4-fast, grok-4-1-fast; image generation: grok-2-image
- **ByteDance** (BytePlus ModelArk, OpenAI-compatible, ap-southeast): seed-1.6, seed-1.8, seed-2.0-lite; image generation: seedream-4.0
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11 changes: 11 additions & 0 deletions tee_gateway/model_registry.py
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Expand Up @@ -187,6 +187,16 @@ class SupportedModel(Enum):
output_price_usd=Decimal("0.000025"),
supports_temperature=False,
)
# Claude Fable 5 — Anthropic's most capable widely released model (GA on the
# first-party API from 2026-06-09). Adaptive-thinking-only; like Opus 4.7+ it
# rejects `temperature` (HTTP 400), so supports_temperature=False.
CLAUDE_FABLE_5 = ModelConfig(
provider="anthropic",
api_name="claude-fable-5",
input_price_usd=Decimal("0.00001"),
output_price_usd=Decimal("0.00005"),
supports_temperature=False,
)

# ── Google Gemini ───────────────────────────────────────────────────
# Note: gemini-2.5-flash, gemini-2.5-pro, and gemini-2.5-flash-lite are scheduled
Expand Down Expand Up @@ -418,6 +428,7 @@ class SupportedModel(Enum):
"claude-opus-4-6": SupportedModel.CLAUDE_OPUS_4_6,
"claude-opus-4-7": SupportedModel.CLAUDE_OPUS_4_7,
"claude-opus-4-8": SupportedModel.CLAUDE_OPUS_4_8,
"claude-fable-5": SupportedModel.CLAUDE_FABLE_5,
# Google
"gemini-2.5-flash": SupportedModel.GEMINI_2_5_FLASH,
"gemini-2.5-pro": SupportedModel.GEMINI_2_5_PRO,
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9 changes: 9 additions & 0 deletions tests/test_pricing.py
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Expand Up @@ -118,6 +118,15 @@ def test_claude_opus_4_8_resolves(self):
# Opus 4.7+ rejects the `temperature` field (HTTP 400)
self.assertFalse(cfg.supports_temperature)

def test_claude_fable_5_resolves(self):
cfg = get_model_config("claude-fable-5")
self.assertEqual(cfg.provider, "anthropic")
self.assertEqual(cfg.api_name, "claude-fable-5")
self.assertEqual(cfg.input_price_usd, Decimal("0.00001"))
self.assertEqual(cfg.output_price_usd, Decimal("0.00005"))
# Adaptive-thinking-only; rejects the `temperature` field (HTTP 400)
self.assertFalse(cfg.supports_temperature)

# ── OpenAI ──────────────────────────────────────────────────────────────

def test_gpt_4_1_resolves(self):
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