GoogleGemini 2.5 ProVSOpenAIGPT-5.4 nano
Our Take
While these models specialize in different coding tasks: Gemini 2.5 Pro is suited for multi-file code and clearly defined tasks, while GPT-5.4 nano excels at complex codebases, multi-file repositories, and architectural planning, they share very similar reasoning capabilities. GPT-5.4 nano is the smarter buy here as it offers the same level of performance while being 7.4x cheaper than Gemini 2.5 Pro.
▶WHY?
Benchmark Calculations & Evidence:
Coding Evaluation: Gemini 2.5 Pro was evaluated on SWE-bench Verified (scoring 59.6%), while GPT-5.4 nano was evaluated on SWE-bench Pro (scoring 52.4%).
Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. Gemini 2.5 Pro scored 84.4%, while GPT-5.4 nano scored 82.8%.
Cost Ratio: Gemini 2.5 Pro blended CPM is 7.4x higher than GPT-5.4 nano.
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Benchmarks & Scores
Coding (swe-bench-verified)
59.6%multi-file code and clearly defined tasks
Reasoning (gpqa-diamond)Winner (+1.6%)
84.4%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$3.44Input: $1.25 | Output: $10.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)
52.4%complex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)
82.8%graduate-level science QA
Cost & Context
Cost (per 1M tokens)7.4x cheaper
$0.46Input: $0.20 | Output: $1.25Context Window
400k tokensFrequently Asked Questions about Gemini 2.5 Pro vs GPT-5.4 nano
GPT-5.4 nano is cheaper than Gemini 2.5 Pro. GPT-5.4 nano has a blended cost of $0.46/1M tokens, which is about 7.4x cheaper than Gemini 2.5 Pro at $3.44/1M tokens.
For coding tasks, Gemini 2.5 Pro scores 59.6% on swe-bench-verified (multi-file code and clearly defined tasks), while GPT-5.4 nano scores 52.4% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning).
Related Matchups
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