Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GLM-5.2
94
GPT-5.2
78
Verified leaderboard positions: GLM-5.2 #9 · GPT-5.2 unranked
Pick GLM-5.2 if you want the stronger benchmark profile. GPT-5.2 only becomes the better choice if knowledge is the priority.
Agentic
+25.8 difference
Coding
+2.6 difference
Knowledge
+25.2 difference
GLM-5.2
GPT-5.2
$1.4 / $4.4
$1.75 / $14
N/A
73 t/s
N/A
130.34s
1M
400K
Pick GLM-5.2 if you want the stronger benchmark profile. GPT-5.2 only becomes the better choice if knowledge is the priority.
GLM-5.2 is clearly ahead on the provisional aggregate, 94 to 78. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GLM-5.2's sharpest advantage is in agentic, where it averages 81 against 55.2. The single biggest benchmark swing on the page is SWE-bench Pro, 62.1% to 55.6%. 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 $1.40 input / $4.40 output per 1M tokens for GLM-5.2. That is roughly 3.2x on output cost alone. GLM-5.2 gives you the larger context window at 1M, compared with 400K for GPT-5.2.
GLM-5.2 is ahead on BenchLM's provisional leaderboard, 94 to 78. The biggest single separator in this matchup is SWE-bench Pro, where the scores are 62.1% and 55.6%.
GPT-5.2 has the edge for knowledge tasks in this comparison, averaging 92.4 versus 67.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.
GPT-5.2 has the edge for coding in this comparison, averaging 64.7 versus 62.1. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
GLM-5.2 has the edge for agentic tasks in this comparison, averaging 81 versus 55.2. GPT-5.2 stays close enough that the answer can still flip depending on your workload.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.