Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.
Grok Code Fast 1 has the cleaner overall profile here, landing at 58 versus 56. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
o3-mini is the reasoning model in the pair, while Grok Code Fast 1 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Grok Code Fast 1 gives you the larger context window at 256K, compared with 200K for o3-mini.
Pick Grok Code Fast 1 if you want the stronger benchmark profile. o3-mini only becomes the better choice if knowledge is the priority or you want the stronger reasoning-first profile.
Grok Code Fast 1
53.2
o3-mini
82.1
Grok Code Fast 1
38.3
o3-mini
49.3
Grok Code Fast 1
64.3
o3-mini
87.3
Grok Code Fast 1
79
o3-mini
93.9
Grok Code Fast 1 is ahead overall, 58 to 56. The biggest single separator in this matchup is MMLU, where the scores are 64 and 86.9.
o3-mini has the edge for knowledge tasks in this comparison, averaging 82.1 versus 53.2. Inside this category, MMLU is the benchmark that creates the most daylight between them.
o3-mini has the edge for coding in this comparison, averaging 49.3 versus 38.3. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
o3-mini has the edge for math in this comparison, averaging 87.3 versus 64.3. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
o3-mini has the edge for instruction following in this comparison, averaging 93.9 versus 79. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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