LLM Comparison

Claude Fable 5 vs Claude Sonnet 5: benchmark scores, pricing & comparison.

Side-by-side Claude Fable 5 vs Claude Sonnet 5 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.

Open live leaderboardClaude Fable 5 model pageClaude Sonnet 5 model page
Rank #1 vs #9AskClash overall scores 91.9 vs 76.2.
Pricing $10.0/$50.0 vs $3.00/$15.0Input and output token prices per 1M tokens when published.
Proprietary vs ProprietaryAnthropic vs Anthropic.

Claude Fable 5 vs Claude Sonnet 5 benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

MetricClaude Fable 5Claude Sonnet 5
Overall Score91.976.2
Leaderboard Rank#1#9
RWT9.08.5
Coding Agent Index77.2—
HLE64.557.4
GPQA94.591.1
IFEval80.3—
SWE-bench95.585.2
SWE-Pro80.363.2
SWE-Atlas83.3—
Terminal-Bench88.080.4
DeepSWE69.753.8
OSWorld85.081.2
Finance Agent56.3—
CharXiv93.588.3
MMMU-Pro92.777.3
Tau289.2—
Input Price (per 1M tokens)$10.0$3.00
Output Price (per 1M tokens)$50.0$15.0
Context Window1M+1M
Benchmarks Published1611

Claude Fable 5 vs Claude Sonnet 5 head-to-head charts

Claude Fable 5 leads 11 and Claude Sonnet 5 leads 0 of 11 shared benchmarks. Claude Sonnet 5 is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Claude Fable 5Claude Sonnet 5
Overall
91.9Claude Fable 5
76.2Claude Sonnet 5
RWT
9.0Claude Fable 5
8.5Claude Sonnet 5
HLE
64.5Claude Fable 5
57.4Claude Sonnet 5
GPQA
94.5Claude Fable 5
91.1Claude Sonnet 5
SWE-bench
95.5Claude Fable 5
85.2Claude Sonnet 5
SWE-Pro
80.3Claude Fable 5
63.2Claude Sonnet 5
Terminal-Bench
88.0Claude Fable 5
80.4Claude Sonnet 5
DeepSWE
69.7Claude Fable 5
53.8Claude Sonnet 5
OSWorld
85.0Claude Fable 5
81.2Claude Sonnet 5
CharXiv
93.5Claude Fable 5
88.3Claude Sonnet 5
MMMU-Pro
92.7Claude Fable 5
77.3Claude Sonnet 5
Claude Fable 5
Input$10.0
Output$50.0
Workload$20
Context1M+
Claude Sonnet 5
Input$3.00
Output$15.0
Workload$6.00
Context1M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More Claude Fable 5 and Claude Sonnet 5 comparisons

Explore how Claude Fable 5 and Claude Sonnet 5 stack up against other top-ranked LLMs.

Claude Fable 5 vs GPT-5.6 SolGPT-5.6 Sol vs Claude Sonnet 5Claude Fable 5 vs Kimi K3Kimi K3 vs Claude Sonnet 5Claude Fable 5 vs Claude Opus 4.8Claude Opus 4.8 vs Claude Sonnet 5Claude Fable 5 vs Grok 4.5Grok 4.5 vs Claude Sonnet 5Claude Fable 5 vs Muse Spark 1.1Muse Spark 1.1 vs Claude Sonnet 5

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

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.