SPECS
| context window | 1,000,000 tokens |
|---|---|
| max output | 128,000 tokens |
| price in / out | $10 / $50 per 1M tokens |
| weights | closed |
openrouter.ai/api/v1/models (as of 2026-11-12)
MODEL / CLAUDE-FABLE-5-1
Claude Fable 5.1
Anthropic Fable frontier.
model
textvisioncodereasoning
Kindmodel
Access—
Pricing—
Free tier—
Caps4
PUBLISHED BENCHMARKS
| terminalBench4 | 55.8 |
|---|---|
| deepSwe | 67.4 |
| tbScience | 52.6 |
| frontierMathT4 | 87.8 |
| aaIndex | 50 |
| gdpvalAA | 1735 Elo |
| aaCodingIndex | 80.7 |
| aaAgenticIndex | 57.2 |
Anthropic published · 2026-09
MACHINE-READABLE
GET /api/v1/resources/claude-fable-5-1Open JSON ↗