Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
o3-mini
56
Qwen3.5-27B
63
Verified leaderboard positions: o3-mini unranked · Qwen3.5-27B #16
Pick Qwen3.5-27B if you want the stronger benchmark profile. o3-mini only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Coding
+13.7 difference
Knowledge
+3.4 difference
Inst. Following
+1.1 difference
o3-mini
Qwen3.5-27B
$1.1 / $4.4
$0 / $0
160 t/s
N/A
7.12s
N/A
200K
262K
Pick Qwen3.5-27B if you want the stronger benchmark profile. o3-mini only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Qwen3.5-27B is clearly ahead on the provisional aggregate, 63 to 56. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Qwen3.5-27B's sharpest advantage is in coding, where it averages 63 against 49.3. The single biggest benchmark swing on the page is SWE-bench Verified, 49.3% to 72.4%.
o3-mini is also the more expensive model on tokens at $1.10 input / $4.40 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Qwen3.5-27B. That is roughly Infinityx on output cost alone. Qwen3.5-27B gives you the larger context window at 262K, compared with 200K for o3-mini.
Qwen3.5-27B is ahead on BenchLM's provisional leaderboard, 63 to 56. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 49.3% and 72.4%.
Qwen3.5-27B has the edge for knowledge tasks in this comparison, averaging 80.6 versus 77.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Qwen3.5-27B has the edge for coding in this comparison, averaging 63 versus 49.3. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Qwen3.5-27B has the edge for instruction following in this comparison, averaging 95 versus 93.9. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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