Anthropic
Claude Fable 5
VS
OpenAI
GPT-5.4
Decision Recommendation
⚖️ Trade-off decision: Choose Claude Fable 5 if you need the absolute highest accuracy for complex logic and coding. Choose GPT-5.4 if you want to optimize your budget, as it is 3.6x cheaper.
Model Specs
Claude Fable 5
Benchmarks & Scores
Coding (swe-bench-pro)Winner (+22.6%)
80.3%Reasoning (gpqa-diamond)Winner (+1.3%)
94.1%Cost & Performance
Cost (per 1M tokens)
$20.00Input: $10.00 | Output: $50.00Speed
60.3 tpsContext Window
1M tokensModel Specs
GPT-5.4
Benchmarks & Scores
Coding (swe-bench-pro)
57.7%Reasoning (gpqa-diamond)
92.8%Cost & Performance
Cost (per 1M tokens)3.6x cheaper
$5.63Input: $2.50 | Output: $15.00Speed1.2x faster
74 tpsContext WindowLarger
1.05M tokensWant to customize weights or add more models?
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