Benchmark scores
Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.
LLM Comparison
Claude Fable 5.1 vs Claude Sonnet 5.5 (XHigh): benchmark scores, pricing & comparison.
Side-by-side Claude Fable 5.1 vs Claude Sonnet 5.5 (XHigh) comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.
Verdict: Claude Fable 5.1 ranks higher (#3 vs #19) and wins 4 of 4 shared benchmarks.
Rank #3 vs #19AskClash overall scores 77.7 vs 65.5.
Pricing $10.0/$50.0 vs —/—Input and output token prices per 1M tokens when published.
Proprietary vs AI modelAnthropic vs Anthropic.
Claude Fable 5.1 vs Claude Sonnet 5.5 (XHigh) benchmark comparison
Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.
| Metric | Claude Fable 5.1 | Claude Sonnet 5.5 (XHigh) |
|---|---|---|
| Overall Score | 77.7 | 65.5 |
| Leaderboard Rank | #3 | #19 |
| ACB | 79.2 | 76.6 |
| RWT | 9.0 | — |
| HLE | 65.0 | 50.0 |
| GPQA | 93.7 | — |
| SWE-Pro | 81.2 | — |
| Terminal-Bench | 52.0 | — |
| DeepSWE | 67.4 | — |
| GDPval-AA | 1853.0 | 1727.3 |
| Finance Agent | 58.9 | — |
| MMMU-Pro | 90.6 | — |
| ARC-AGI 2 | 90.0 | 83.9 |
| Input Price (per 1M tokens) | $10.0 | — |
| Output Price (per 1M tokens) | $50.0 | — |
| Context Window | 1M | — |
| Benchmarks Published | 13 | 7 |
Claude Fable 5.1 vs Claude Sonnet 5.5 (XHigh) head-to-head charts
Claude Fable 5.1 leads 5 and Claude Sonnet 5.5 (XHigh) leads 0 of 5 shared benchmarks. Charts show only benchmarks both models publish.
Claude Fable 5.1Claude Sonnet 5.5 (XHigh)
Overall
ACB
HLE
GDPval-AA
ARC-AGI 2
Claude Fable 5.1
Input$10.0
Output$50.0
Workload$20
Context1M
Claude Sonnet 5.5 (XHigh)
Input—
Output—
Workload—
Context—
Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.
More Claude Fable 5.1 and Claude Sonnet 5.5 (XHigh) comparisons
Explore how Claude Fable 5.1 and Claude Sonnet 5.5 (XHigh) stack up against other top-ranked LLMs.
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How to read this comparison
Token pricing
Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.
Coverage matters
Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.
This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.