Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Command A+
32
GPT-5.5
91
Verified leaderboard positions: Command A+ unranked · GPT-5.5 #4
Pick GPT-5.5 if you want the stronger benchmark profile. Command A+ only becomes the better choice if you want the cheaper token bill.
Multimodal
+10.6 difference
Command A+
GPT-5.5
$2.5 / $10
$5 / $30
272 t/s
N/A
0.25s
N/A
128K
1M
Pick GPT-5.5 if you want the stronger benchmark profile. Command A+ only becomes the better choice if you want the cheaper token bill.
GPT-5.5 is clearly ahead on the provisional aggregate, 91 to 32. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.5's sharpest advantage is in multimodal & grounded, where it averages 70.4 against 59.8. The single biggest benchmark swing on the page is MMMU-Pro, 63% to 81.2%.
GPT-5.5 is also the more expensive model on tokens at $5.00 input / $30.00 output per 1M tokens, versus $2.50 input / $10.00 output per 1M tokens for Command A+. That is roughly 3.0x on output cost alone. GPT-5.5 gives you the larger context window at 1M, compared with 128K for Command A+.
GPT-5.5 is ahead on BenchLM's provisional leaderboard, 91 to 32. The biggest single separator in this matchup is MMMU-Pro, where the scores are 63% and 81.2%.
GPT-5.5 has the edge for multimodal and grounded tasks in this comparison, averaging 70.4 versus 59.8. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
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