Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-4.1 mini
46
Qwen3.5 397B
64
Verified leaderboard positions: GPT-4.1 mini unranked · Qwen3.5 397B #15
Pick Qwen3.5 397B if you want the stronger benchmark profile. GPT-4.1 mini only becomes the better choice if you want the cheaper token bill or you need the larger 1M context window.
Coding
+36.7 difference
Knowledge
+1.0 difference
Inst. Following
+4.1 difference
GPT-4.1 mini
Qwen3.5 397B
$0.4 / $1.6
$0.6 / $3.6
80 t/s
96 t/s
0.76s
2.44s
1M
128K
Pick Qwen3.5 397B if you want the stronger benchmark profile. GPT-4.1 mini only becomes the better choice if you want the cheaper token bill or you need the larger 1M context window.
Qwen3.5 397B is clearly ahead on the provisional aggregate, 64 to 46. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Qwen3.5 397B's sharpest advantage is in coding, where it averages 60.3 against 23.6. The single biggest benchmark swing on the page is SWE-bench Verified, 23.6% to 76.2%.
Qwen3.5 397B is also the more expensive model on tokens at $0.60 input / $3.60 output per 1M tokens, versus $0.40 input / $1.60 output per 1M tokens for GPT-4.1 mini. That is roughly 2.3x on output cost alone. GPT-4.1 mini gives you the larger context window at 1M, compared with 128K for Qwen3.5 397B.
Qwen3.5 397B is ahead on BenchLM's provisional leaderboard, 64 to 46. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 23.6% and 76.2%.
Qwen3.5 397B has the edge for knowledge tasks in this comparison, averaging 65.2 versus 64.2. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Qwen3.5 397B has the edge for coding in this comparison, averaging 60.3 versus 23.6. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Qwen3.5 397B has the edge for instruction following in this comparison, averaging 92.6 versus 88.5. Inside this category, IFEval is the benchmark that creates the most daylight between them.
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