Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Composer 2.5
80
GLM-5.2
94
Verified leaderboard positions: Composer 2.5 unranked · GLM-5.2 #9
Pick GLM-5.2 if you want the stronger benchmark profile. Composer 2.5 only becomes the better choice if you want the cheaper token bill.
Agentic
+11.7 difference
Composer 2.5
GLM-5.2
$0.5 / $2.5
$1.4 / $4.4
N/A
N/A
N/A
N/A
200K
1M
Pick GLM-5.2 if you want the stronger benchmark profile. Composer 2.5 only becomes the better choice if you want the cheaper token bill.
GLM-5.2 is clearly ahead on the provisional aggregate, 94 to 80. 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 69.3. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 69.3% to 81%.
GLM-5.2 is also the more expensive model on tokens at $1.40 input / $4.40 output per 1M tokens, versus $0.50 input / $2.50 output per 1M tokens for Composer 2.5. GLM-5.2 gives you the larger context window at 1M, compared with 200K for Composer 2.5.
GLM-5.2 is ahead on BenchLM's provisional leaderboard, 94 to 80. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 69.3% and 81%.
GLM-5.2 has the edge for agentic tasks in this comparison, averaging 81 versus 69.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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