Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude 3.5 Sonnet
40
Grok Code Fast 1
39
Pick Claude 3.5 Sonnet 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
+21.8 difference
Claude 3.5 Sonnet
Grok Code Fast 1
$3 / $15
$0.2 / $1.5
N/A
172 t/s
N/A
2.81s
200K
256K
Pick Claude 3.5 Sonnet 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.
Claude 3.5 Sonnet finishes one point ahead on BenchLM's provisional leaderboard, 40 to 39. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.
Claude 3.5 Sonnet is also the more expensive model on tokens at $3.00 input / $15.00 output per 1M tokens, versus $0.20 input / $1.50 output per 1M tokens for Grok Code Fast 1. That is roughly 10.0x on output cost alone. Grok Code Fast 1 gives you the larger context window at 256K, compared with 200K for Claude 3.5 Sonnet.
Claude 3.5 Sonnet is ahead on BenchLM's provisional leaderboard, 40 to 39. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49% and 70.8%.
Grok Code Fast 1 has the edge for coding in this comparison, averaging 70.8 versus 49. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
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