Google Gemini 2.5 Flash VS xAI Grok 4.5
⚖️Our Take
These models use different coding evaluation benchmarks — with Gemini 2.5 Flash evaluated on swe-bench-verified (good at editing existing code, cross-file updates, and multi-component systems) and Grok 4.5 on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) — but Grok 4.5 holds a clear reasoning advantage (+24.7% on GPQA Diamond). However, Gemini 2.5 Flash is a massive 3.5x cheaper to run. Choose Grok 4.5 for complex logic and reasoning tasks, or Gemini 2.5 Flash to optimize your budget for high-volume pipelines.
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Benchmarks & Scores
Coding (swe-bench-verified)
60.4%good at editing existing code, cross-file updates, and multi-component systems
Reasoning (gpqa-diamond)
68.3%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)3.5x cheaper
$0.85Input: $0.30 | Output: $2.50Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)
64.7%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)Winner (+24.7%)
93%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$3.00Input: $2.00 | Output: $6.00Context Window
500k tokensFrequently Asked Questions about Gemini 2.5 Flash vs Grok 4.5 comparison
Gemini 2.5 Flash is cheaper than Grok 4.5. Gemini 2.5 Flash has a blended cost of $0.85/1M tokens, which is about 3.5x cheaper than Grok 4.5 at $3.00/1M tokens.
For coding tasks, Gemini 2.5 Flash scores 60.4% on swe-bench-verified (good at editing existing code, cross-file updates, and multi-component systems), while Grok 4.5 scores 64.7% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases).
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