Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
GPT-5.2 Pro is clearly ahead on the aggregate, 39 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.2 Pro's sharpest advantage is in mathematics, where it averages 100 against 39.7. The single biggest benchmark swing on the page is GPQA, 93.2% to 66.2%. 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-5.2 Pro is also the more expensive model on tokens at $25.00 input / $150.00 output per 1M tokens, versus $0.30 input / $0.50 output per 1M tokens for Grok 3 Mini. That is roughly 300.0x on output cost alone. GPT-5.2 Pro is the reasoning model in the pair, while Grok 3 Mini 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. GPT-5.2 Pro gives you the larger context window at 400K, compared with 128K for Grok 3 Mini.
Pick GPT-5.2 Pro 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.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
GPT-5.2 Pro
50.8
Grok 3 Mini
41.5
Benchmark data for this category is coming soon.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
GPT-5.2 Pro
57.8
Grok 3 Mini
74.1
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
GPT-5.2 Pro
100
Grok 3 Mini
39.7
GPT-5.2 Pro is ahead overall, 39 to 23. The biggest single separator in this matchup is GPQA, where the scores are 93.2% and 66.2%.
Grok 3 Mini has the edge for knowledge tasks in this comparison, averaging 74.1 versus 57.8. Inside this category, GPQA is the benchmark that creates the most daylight between them.
GPT-5.2 Pro has the edge for coding in this comparison, averaging 50.8 versus 41.5. Grok 3 Mini stays close enough that the answer can still flip depending on your workload.
GPT-5.2 Pro has the edge for math in this comparison, averaging 100 versus 39.7. Grok 3 Mini stays close enough that the answer can still flip depending on your workload.
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