Claude Fable 5.1 (Adaptive Reasoning, Medium Effort, Default Fallback)
AnthropicClaude
Release Date
2026-09-01
Parameters
—
Context Length
1.0M
Modalities
image, pdf, text
Capability Radar
59
general
74
coding
89
reasoning
70
science
85
agents
80
multimodal
Rankings
| Domain | #Rank | Score | Source |
|---|---|---|---|
| Code Ranking | 11 | 94.0 | AA |
| General Ranking | 8 | 92.0 | AA |
| Science | 11 | 91.0 | AA |
Benchmark Scores (LLM Stats)
(LLM Stats (zeroeval))No benchmark data available
AA Evaluation Indices
(Artificial Analysis)Gpqa(NYU + Cohere + Anthropic (2023))88.6
Terminalbench V2 188.0
Lcr(Artificial Analysis)78.7
Coding Index(Artificial Analysis)77.1
Intelligence Index(Artificial Analysis)60.5
Scicode(UIUC + Argonne National Lab (2024))55.3
Hle(Center for AI Safety + Scale AI (2025))53.8
Tau Banking41.0
LLM Stats Category Scores
(LLM Stats (zeroeval))No category score data available
Pricing
Input Price$10 / 1M tokens
Output Price$50 / 1M tokens
Blended Price (3:1)$20 / 1M tokens
Cache Read Price$0.25 / 1M tokens
Cache Write Price$12.5 / 1M tokens
Speed
Tokens/sec46.6
Time to First Token4.52s
Time to Answer4.52s
Provider Price Ranking
Provider Price Ranking
1 providers
ProviderInputOutput
1AnthropicPRIMARY
$10
$50
Compare pricing across different API providers for this model.