OpenAI
GPT-5.4 nano
VS
OpenAI
GPT-5.5 Pro
Decision Recommendation
📊 Comparison Summary: GPT-5.4 nano and GPT-5.5 Pro present close characteristics. Review the specific benchmark scorelines below to determine which engine matches your needs.
Model Specs
GPT-5.4 nano
Benchmarks & Scores
Coding (swe-bench-pro)Winner (+)
52.4%Reasoning (gpqa-diamond)
81.7%Cost & Performance
Cost (per 1M tokens)145.9x cheaper
$0.46Input: $0.20 | Output: $1.25Speed2.6x faster
191 tpsContext Window
400k tokensModel Specs
GPT-5.5 Pro
Benchmarks & Scores
Coding (swe-bench-pro)
N/AReasoning (gpqa-diamond)Winner (+14.5%)
96.2%Cost & Performance
Cost (per 1M tokens)
$67.50Input: $30.00 | Output: $180.00Speed
74 tpsContext WindowLarger
1.05M tokensWant to customize weights or add more models?
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