Claude Fable 5.1vsGPT-5.6 Sol
Across 7 shared benchmarks, Claude Fable 5.1 leads overall: Claude Fable 5.1 wins 6, GPT-5.6 Sol wins 1, with 0 ties and an average score difference of +28.36.
Claude Fable 5.1
Anthropic · 2026-09-01 · Reasoning model
GPT-5.6 Sol
OpenAI · 2026-06-26 · Reasoning model
Claude Fable 5.16 wins(86%)(14%)1 winGPT-5.6 Sol
Benchmark scores
Grouped by capability, sorted by largest gap within each. 7 shared benchmarks.
AI Agent - Tool Usage
Claude Fable 5.1 2/3| Benchmark | Claude Fable 5.1 | GPT-5.6 Sol | Diff |
|---|---|---|---|
| Terminal-Bench-Science 0.1 | 52.601 / 10Max (With Tools) | 22.403 / 10Max (With Tools) | +30.20 |
| OSWorld 2.0 | 41.706 / 6Max (With Tools) | 62.602 / 6极高强度思考（工具） | -20.90 |
| Terminal-Bench 4.0 | 55.801 / 11Max (With Tools) | 37.275 / 11Max (With Tools) | +18.53 |
General Knowledge
Claude Fable 5.1 2/2| Benchmark | Claude Fable 5.1 | GPT-5.6 Sol | Diff |
|---|---|---|---|
| AA Intelligence Index | 661 / 27Max (With Tools) | 4223 / 27Normal (With Tools) | +24 |
| HLE | 651 / 188Max (With Tools) | 49.5038 / 188最高（无工具） | +15.50 |
Coding and Software Engineer
Claude Fable 5.1 1/1| Benchmark | Claude Fable 5.1 | GPT-5.6 Sol | Diff |
|---|---|---|---|
| CursorBench 3.2 | 73.401 / 5Max (With Tools) | 67.204 / 5Max (With Tools) | +6.20 |
Productivity Knowledge
Claude Fable 5.1 1/1| Benchmark | Claude Fable 5.1 | GPT-5.6 Sol | Diff |
|---|---|---|---|
| GDPval-AA v2 | 1,8532 / 23Max (With Tools) | 1,7287 / 23Max (With Tools) | +125 |
Specs
| Field | Claude Fable 5.1 | GPT-5.6 Sol |
|---|---|---|
| Publisher | Anthropic | OpenAI |
| Release date | 2026-09-01 | 2026-06-26 |
| Model type | Reasoning model | Reasoning model |
| Architecture | Dense | Dense |
| Parameters | Not available | Not available |
| Context length | 1M | 1.05M |
| Max output | 128K | 128K |
API pricing
Prices use DataLearner records when available; missing fields are not inferred.
| Item | Claude Fable 5.1 | GPT-5.6 Sol |
|---|---|---|
| Text input | $10 / 1M tokens | $4 / 1M tokens |
| Text output | $50 / 1M tokens | $20 / 1M tokens |
| Cache read | $0.25 / 1M tokens | $0.4 / 1M tokens |
| Cache write | $12.5 / 1M tokens | $5 / 1M tokens |
Summary
- Claude Fable 5.1leads in:AI Agent - Tool Usage (2/3), General Knowledge (2/2), Coding and Software Engineer (1/1), Productivity Knowledge (1/1)
On average across the 7 shared benchmarks, Claude Fable 5.1 scores 28.36 higher.
Largest single-benchmark gap: GDPval-AA v2 — Claude Fable 5.1 1,853 vs GPT-5.6 Sol 1,728 (+125).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.