OpenAI GPT-5.4 mini VS xAI Grok 4.5
⚖️Our Take
If your budget allows, Grok 4.5 is the superior choice here, offering a clear benchmark advantage while carrying only a moderate price premium (1.8x). We recommend choosing GPT-5.4 mini only if you need to optimize costs for very high-volume pipelines.
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Benchmarks & Scores
Coding (swe-bench-pro)
54.4%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
87.5%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)1.8x cheaper
$1.69Input: $0.75 | Output: $4.50Context Window
400k tokensBenchmarks & Scores
Coding (swe-bench-pro)Winner (+10.3%)
64.7%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)Winner (+5.5%)
93%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$3.00Input: $2.00 | Output: $6.00Context WindowLarger
500k tokensFrequently Asked Questions about GPT-5.4 mini vs Grok 4.5 comparison
GPT-5.4 mini is cheaper than Grok 4.5. GPT-5.4 mini has a blended cost of $1.69/1M tokens, which is about 1.8x cheaper than Grok 4.5 at $3.00/1M tokens.
Grok 4.5 is better for coding tasks on this benchmark. It scores 64.7% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) compared to GPT-5.4 mini which scores 54.4%.
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