Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
GPT-4o is clearly ahead on the aggregate, 34 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-4o's sharpest advantage is in reasoning, where it averages 62.9 against 21.7. The single biggest benchmark swing on the page is SimpleQA, 64% to 21.7%. Grok 3 Mini does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.
GPT-4o is also the more expensive model on tokens at $2.50 input / $10.00 output per 1M tokens, versus $0.30 input / $0.50 output per 1M tokens for Grok 3 Mini. That is roughly 20.0x on output cost alone.
Pick GPT-4o if you want the stronger benchmark profile. Grok 3 Mini only becomes the better choice if knowledge is the priority or you want the cheaper token bill.
Benchmark data for this category is coming soon.
GPT-4o
45.6
Grok 3 Mini
41.5
Benchmark data for this category is coming soon.
GPT-4o
62.9
Grok 3 Mini
21.7
GPT-4o
55
Grok 3 Mini
74.1
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Benchmark data for this category is coming soon.
GPT-4o
65
Grok 3 Mini
39.7
GPT-4o is ahead overall, 34 to 23. The biggest single separator in this matchup is SimpleQA, where the scores are 64% and 21.7%.
Grok 3 Mini has the edge for knowledge tasks in this comparison, averaging 74.1 versus 55. Inside this category, GPQA is the benchmark that creates the most daylight between them.
GPT-4o has the edge for coding in this comparison, averaging 45.6 versus 41.5. Grok 3 Mini stays close enough that the answer can still flip depending on your workload.
GPT-4o has the edge for math in this comparison, averaging 65 versus 39.7. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.
GPT-4o has the edge for reasoning in this comparison, averaging 62.9 versus 21.7. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
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