Head-to-head comparison across 4benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.5
89
Nemotron 3 Nano Omni 30B A3B
48
Verified leaderboard positions: GPT-5.5 #7 · Nemotron 3 Nano Omni 30B A3B unranked
Pick GPT-5.5 if you want the stronger benchmark profile. Nemotron 3 Nano Omni 30B A3B only becomes the better choice if mathematics is the priority or you want the cheaper token bill.
Coding
+5.1 difference
Knowledge
+9.1 difference
Math
+30.4 difference
Multimodal
+5.9 difference
GPT-5.5
Nemotron 3 Nano Omni 30B A3B
$5 / $30
$0 / $0
N/A
N/A
N/A
N/A
1M
256K
Pick GPT-5.5 if you want the stronger benchmark profile. Nemotron 3 Nano Omni 30B A3B only becomes the better choice if mathematics is the priority or you want the cheaper token bill.
GPT-5.5 is clearly ahead on the provisional aggregate, 89 to 48. 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 coding, where it averages 58.6 against 53.5. The single biggest benchmark swing on the page is GPQA, 93.6% to 72.2%. Nemotron 3 Nano Omni 30B A3B does hit back in mathematics, so the answer changes if that is the part of the workload you care about most.
GPT-5.5 is also the more expensive model on tokens at $5.00 input / $30.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Nemotron 3 Nano Omni 30B A3B. That is roughly Infinityx on output cost alone. GPT-5.5 gives you the larger context window at 1M, compared with 256K for Nemotron 3 Nano Omni 30B A3B.
GPT-5.5 is ahead on BenchLM's provisional leaderboard, 89 to 48. The biggest single separator in this matchup is GPQA, where the scores are 93.6% and 72.2%.
Nemotron 3 Nano Omni 30B A3B has the edge for knowledge tasks in this comparison, averaging 75.5 versus 66.4. Inside this category, AA-Omniscience Index is the benchmark that creates the most daylight between them.
GPT-5.5 has the edge for coding in this comparison, averaging 58.6 versus 53.5. Inside this category, Terminal-Bench Hard is the benchmark that creates the most daylight between them.
Nemotron 3 Nano Omni 30B A3B has the edge for math in this comparison, averaging 82.1 versus 51.7. GPT-5.5 stays close enough that the answer can still flip depending on your workload.
Nemotron 3 Nano Omni 30B A3B has the edge for multimodal and grounded tasks in this comparison, averaging 76.3 versus 70.4. Inside this category, AA-MMMU-Pro is the benchmark that creates the most daylight between them.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.