C
Claude Fable 5.1
A long-form creative model, top three on both EQ-Bench Creative Writing and LiveBench Language
Intelligence v5
49.7
Leaderboard rank
#8
Input / output
$10.00/$50.00
Blended 3:1
$20.00
Output speed
57 tok/s
Value
2 pts/$
Capability profile Normalised to the field maximum
Specifications
Vendor
Anthropic
Released
2026-08
Weights
Closed, API only
Context
1,000,000 tokens
Max output
128,000 tokens
Parameters
Undisclosed
Input price
$10.00 / 1M
Output price
$50.00 / 1M
Cache hit
$0.25 / 1M
Output speed
57 tok/s
Intelligence
49.7（v5）
Benchmark scores
How it is measured →Ranked 8 · bars are scaled to the field maximum for that benchmark.
| Benchmarks | Score | Vs. best in field | Gap |
|---|---|---|---|
| AA Intelligence Index v5 Intelligence index | 49.7 | 84% | −9.7 pts |
| AA Intelligence Index v4.3.2 Intelligence index (legacy) | 53.0 | 92% | −4.6 pts |
| GPQA Diamond | — | — | not indexed |
| Terminal-Bench 4.0 | — | — | not indexed |
| LiveBench Design Document generation (DOCX/PPT/PDF) | 83.4 | 96% | −3.5 pts |
| Vals Index | — | — | not indexed |
Assessment
Third on EQ-Bench Creative Writing and third on LiveBench Language. At $7.63 per task it is the most expensive model here, and it outputs at only 57 tok/s. Suited to novels, screenplays and brand copy — not to high-concurrency batch work.
At the same price
The four models closest on blended price, side by side.
| Model | v5 | Blended | tok/s | Score gap |
|---|---|---|---|---|
| GPT-6 AstraOpenAI | 56.9 | $20.00 | 81 | +7.2 |
| Claude Opus 5.5Anthropic | 58.4 | $8.00 | 96 | +8.7 |
| Claude Sonnet 5.5Anthropic | 54.2 | $4.00 | 135 | +4.5 |
| GPT-6.1 SolOpenAI | 54.5 | $4.00 | 77 | +4.8 |
Compare side by side
Line it up against other models on price, speed and every benchmark.
The comparison tool lines up to 4 models side by side with switchable normalisation — built for purchasing decisions.
Open the comparison tool → Back to leaderboard