GoogleGemini 3.1 ProVSOpenAIGPT-5.4 mini
Our Take
We recommend Gemini 3.1 Pro if your workflow requires peak reasoning performance, or the 2.7x cheaper GPT-5.4 mini to optimize your API budget. While both models deliver similar coding capabilities, Gemini 3.1 Pro holds a clear lead in reasoning. Choose Gemini 3.1 Pro for complex logic, or GPT-5.4 mini for cost optimization.
▶WHY?
Benchmark Calculations & Evidence:
Coding Benchmarks: Both models were evaluated on the SWE-bench Pro benchmark. Gemini 3.1 Pro scored 54.2%, while GPT-5.4 mini scored 54.4%.
Reasoning Benchmarks: Both models were evaluated on the GPQA Diamond benchmark. Gemini 3.1 Pro scored 94.3%, while GPT-5.4 mini scored 87.5%.
Cost Efficiency: GPT-5.4 mini pricing ($0.75/M input, $4.5/M output) is 2.7x cheaper than Gemini 3.1 Pro ($2/M input, $12/M output).
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Benchmarks & Scores
Coding (swe-bench-pro)
54.2%complex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)Winner (+6.8%)
94.3%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$4.50Input: $2.00 | Output: $12.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)Winner (+0.2%)
54.4%complex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)
87.5%graduate-level science QA
Cost & Context
Cost (per 1M tokens)2.7x cheaper
$1.69Input: $0.75 | Output: $4.50Context Window
400k tokensFrequently Asked Questions about Gemini 3.1 Pro vs GPT-5.4 mini
GPT-5.4 mini is cheaper than Gemini 3.1 Pro. GPT-5.4 mini has a blended cost of $1.69/1M tokens, which is about 2.7x cheaper than Gemini 3.1 Pro at $4.50/1M tokens.
GPT-5.4 mini is better for coding tasks on this benchmark. It scores 54.4% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning) compared to Gemini 3.1 Pro which scores 54.2%.
Related Matchups
Explore similar comparisons for Gemini 3.1 Pro and GPT-5.4 mini.
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