Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Composer 2.5
82
Qwen3.6-27B
73
Verified leaderboard positions: Composer 2.5 unranked · Qwen3.6-27B #16
Pick Composer 2.5 if you want the stronger benchmark profile. Qwen3.6-27B only becomes the better choice if you want the cheaper token bill or you need the larger 262K context window.
Agentic
+10.0 difference
Composer 2.5
Qwen3.6-27B
$0.5 / $2.5
$0 / $0
N/A
N/A
N/A
N/A
200K
262K
Pick Composer 2.5 if you want the stronger benchmark profile. Qwen3.6-27B only becomes the better choice if you want the cheaper token bill or you need the larger 262K context window.
Composer 2.5 is clearly ahead on the provisional aggregate, 82 to 73. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Composer 2.5's sharpest advantage is in agentic, where it averages 69.3 against 59.3. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 69.3% to 59.3%.
Composer 2.5 is also the more expensive model on tokens at $0.50 input / $2.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Qwen3.6-27B. That is roughly Infinityx on output cost alone. Qwen3.6-27B gives you the larger context window at 262K, compared with 200K for Composer 2.5.
Composer 2.5 is ahead on BenchLM's provisional leaderboard, 82 to 73. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 69.3% and 59.3%.
Composer 2.5 has the edge for agentic tasks in this comparison, averaging 69.3 versus 59.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Estimates at 50,000 req/day · 1000 tokens/req average.
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