Google Gemini 3.5 Flash VS xAI Grok 4.5
👑Our Take
Grok 4.5 is the superior choice here. It holds a 5.2% average lead in benchmarks while actually being more cost-effective (saving 1.1x on API costs compared to Gemini 3.5 Flash). Unless you have specific provider lock-in, go with Grok 4.5.
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Benchmarks & Scores
Coding (swe-bench-pro)
55.1%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
92.2%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$3.38Input: $1.50 | Output: $9.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)Winner (+9.6%)
64.7%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)Winner (+0.8%)
93%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)1.1x cheaper
$3.00Input: $2.00 | Output: $6.00Context Window
500k tokensFrequently Asked Questions about Gemini 3.5 Flash vs Grok 4.5 comparison
Grok 4.5 is cheaper than Gemini 3.5 Flash. Grok 4.5 has a blended cost of $3.00/1M tokens, which is about 1.1x cheaper than Gemini 3.5 Flash at $3.38/1M 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 Gemini 3.5 Flash which scores 55.1%.
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