GoogleGemini 3 FlashVSOpenAIGPT-5.4 mini
Our Take
We recommend Gemini 3 Flash for superior overall value and reasoning capabilities, as it is cheaper or equal in cost while delivering peak intelligence. While Gemini 3 Flash excels at complex multi-file code and clearly defined tasks, GPT-5.4 mini is suited for scripting complex codebases, multi-file repositories, and architectural planning. Choose Gemini 3 Flash for multi-file code and clearly defined tasks, or GPT-5.4 mini if you specifically require its simpler functions profile.
▶WHY?
Benchmark Calculations & Evidence:
Coding Evaluation: Gemini 3 Flash was evaluated on SWE-bench Verified (scoring 78%), while GPT-5.4 mini was evaluated on SWE-bench Pro (scoring 54.4%).
Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. Gemini 3 Flash scored 90.4%, while GPT-5.4 mini scored 87.5%.
Cost Efficiency: GPT-5.4 mini pricing ($0.75/M input, $4.5/M output) is 0.7x cheaper than Gemini 3 Flash ($0.5/M input, $3/M output).
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Benchmarks & Scores
Coding (swe-bench-verified)
78%multi-file code and clearly defined tasks
Reasoning (gpqa-diamond)Winner (+2.9%)
90.4%graduate-level science QA
Cost & Context
Cost (per 1M tokens)1.5x cheaper
$1.13Input: $0.50 | Output: $3.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)
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)
$1.69Input: $0.75 | Output: $4.50Context Window
400k tokensFrequently Asked Questions about Gemini 3 Flash vs GPT-5.4 mini
Gemini 3 Flash is cheaper than GPT-5.4 mini. Gemini 3 Flash has a blended cost of $1.13/1M tokens, which is about 1.5x cheaper than GPT-5.4 mini at $1.69/1M tokens.
For coding tasks, Gemini 3 Flash scores 78% on swe-bench-verified (multi-file code and clearly defined tasks), while GPT-5.4 mini scores 54.4% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning).
Related Matchups
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