Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
DeepSeek V4 Pro (High)
83
GPT-5.2
82
Verified leaderboard positions: DeepSeek V4 Pro (High) #6 · GPT-5.2 unranked
Pick DeepSeek V4 Pro (High) if you want the stronger benchmark profile. GPT-5.2 only becomes the better choice if knowledge is the priority.
Agentic
+14.8 difference
Coding
+9.1 difference
Knowledge
+29.8 difference
DeepSeek V4 Pro (High)
GPT-5.2
$1.74 / $3.48
$1.75 / $14
N/A
73 t/s
N/A
130.34s
1M
400K
Pick DeepSeek V4 Pro (High) if you want the stronger benchmark profile. GPT-5.2 only becomes the better choice if knowledge is the priority.
DeepSeek V4 Pro (High) finishes one point ahead on BenchLM's provisional leaderboard, 83 to 82. 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.
DeepSeek V4 Pro (High)'s sharpest advantage is in agentic, where it averages 70 against 55.2. The single biggest benchmark swing on the page is BrowseComp, 80.4% to 65.8%. GPT-5.2 does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.
GPT-5.2 is also the more expensive model on tokens at $1.75 input / $14.00 output per 1M tokens, versus $1.74 input / $3.48 output per 1M tokens for DeepSeek V4 Pro (High). That is roughly 4.0x on output cost alone. DeepSeek V4 Pro (High) gives you the larger context window at 1M, compared with 400K for GPT-5.2.
DeepSeek V4 Pro (High) is ahead on BenchLM's provisional leaderboard, 83 to 82. The biggest single separator in this matchup is BrowseComp, where the scores are 80.4% and 65.8%.
GPT-5.2 has the edge for knowledge tasks in this comparison, averaging 92.4 versus 62.6. Inside this category, GPQA is the benchmark that creates the most daylight between them.
DeepSeek V4 Pro (High) has the edge for coding in this comparison, averaging 73.8 versus 64.7. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
DeepSeek V4 Pro (High) has the edge for agentic tasks in this comparison, averaging 70 versus 55.2. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
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