Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Gemini 2.5 Pro
64
Grok Code Fast 1
39
Pick Gemini 2.5 Pro if you want the stronger benchmark profile. Grok Code Fast 1 only becomes the better choice if coding is the priority or you want the cheaper token bill.
Coding
+7.0 difference
Gemini 2.5 Pro
Grok Code Fast 1
$1.25 / $10
$0.2 / $1.5
117 t/s
172 t/s
21.19s
2.81s
1M
256K
Pick Gemini 2.5 Pro if you want the stronger benchmark profile. Grok Code Fast 1 only becomes the better choice if coding is the priority or you want the cheaper token bill.
Gemini 2.5 Pro is clearly ahead on the provisional aggregate, 64 to 39. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Gemini 2.5 Pro is also the more expensive model on tokens at $1.25 input / $10.00 output per 1M tokens, versus $0.20 input / $1.50 output per 1M tokens for Grok Code Fast 1. That is roughly 6.7x on output cost alone. Gemini 2.5 Pro gives you the larger context window at 1M, compared with 256K for Grok Code Fast 1.
Gemini 2.5 Pro is ahead on BenchLM's provisional leaderboard, 64 to 39. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 63.8% and 70.8%.
Grok Code Fast 1 has the edge for coding in this comparison, averaging 70.8 versus 63.8. Inside this category, Terminal-Bench Hard is the benchmark that creates the most daylight between them.
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