Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
GPT-5.2 Pro has the cleaner overall profile here, landing at 90 versus 87. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
GPT-5.2 Pro's sharpest advantage is in coding, where it averages 84.8 against 78.7. The single biggest benchmark swing on the page is SWE-bench Verified, 83 to 76. GPT-5.3 Instant does hit back in instruction following, 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 $1.75 input / $14.00 output per 1M tokens for GPT-5.3 Instant. That is roughly 10.7x on output cost alone. GPT-5.2 Pro gives you the larger context window at 400K, compared with 128K for GPT-5.3 Instant.
Pick GPT-5.2 Pro if you want the stronger benchmark profile. GPT-5.3 Instant only becomes the better choice if instruction following is the priority or you want the cheaper token bill.
GPT-5.2 Pro
85.9
GPT-5.3 Instant
82.9
GPT-5.2 Pro
84.8
GPT-5.3 Instant
78.7
GPT-5.2 Pro
96
GPT-5.3 Instant
95
GPT-5.2 Pro
95.2
GPT-5.3 Instant
94.2
GPT-5.2 Pro
81.5
GPT-5.3 Instant
80.8
GPT-5.2 Pro
95
GPT-5.3 Instant
96
GPT-5.2 Pro
93.4
GPT-5.3 Instant
93.4
GPT-5.2 Pro
98.2
GPT-5.3 Instant
97.2
GPT-5.2 Pro is ahead overall, 90 to 87. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 83 and 76.
GPT-5.2 Pro has the edge for knowledge tasks in this comparison, averaging 81.5 versus 80.8. 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 84.8 versus 78.7. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
GPT-5.2 Pro has the edge for math in this comparison, averaging 98.2 versus 97.2. Inside this category, AIME 2025 is the benchmark that creates the most daylight between them.
GPT-5.2 Pro has the edge for reasoning in this comparison, averaging 95.2 versus 94.2. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
GPT-5.2 Pro has the edge for agentic tasks in this comparison, averaging 85.9 versus 82.9. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
GPT-5.2 Pro has the edge for multimodal and grounded tasks in this comparison, averaging 96 versus 95. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
GPT-5.3 Instant has the edge for instruction following in this comparison, averaging 96 versus 95. Inside this category, IFEval is the benchmark that creates the most daylight between them.
GPT-5.2 Pro and GPT-5.3 Instant are effectively tied for multilingual tasks here, both landing at 93.4 on average.
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