Model comparison
GPT-4o mini vs Nemotron 3.5 Lightning
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 25.5 on the Noometry Index.
Last verified . 18 shared benchmarks.
NVIDIASummary
- They share 18 benchmarks with published results for both. GPT-4o mini scores higher in 0 categories and Nemotron 3.5 Lightning in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where Nemotron 3.5 Lightning leads 37.5 to 10.4.
- Nemotron 3.5 Lightning is cheaper at $0.05 / $0.20 per million input/output tokens, against $0.15 / $0.60 for GPT-4o mini.
- Nemotron 3.5 Lightning accepts more context: 262K tokens versus 128K.
- Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.
Side by side
| GPT-4o mini | Nemotron 3.5 Lightning | |
|---|---|---|
| Provider | OpenAI | NVIDIA |
| Noometry Index | 25.5 | 40.0 |
| Released | 2024-07-18 | 2026-08-11 |
| Weights | Proprietary | Open |
| Context window | 128K | 262K |
| Max output | 16K | 262K |
| Input $ / M tokens | $0.15 | $0.05 |
| Output $ / M tokens | $0.60 | $0.20 |
| Results tracked | 60 | 18 |
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Category by category
Coding Nemotron 3.5 Lightning leads
GPT-4o mini: 22.0 (#335), Nemotron 3.5 Lightning: 40.4 (#141)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Coding | 1290 | 1375 |
| Aider Polyglot | 3.6% | — |
| WeirdML | 11.8% | — |
| BigCodeBench Instruct | 46.1% | — |
| LiveBench Coding | 43.1% | — |
| BigCodeBench Complete | 57.4% | — |
| HumanEval+ | 83.5% | — |
| MBPP+ | 72.2% | — |
Agentic & Tool Use Not comparable
GPT-4o mini: 27.5 (#101), Nemotron 3.5 Lightning: —
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| BALROG | 17.4% | — |
Reasoning Nemotron 3.5 Lightning leads
GPT-4o mini: 8.7 (#347), Nemotron 3.5 Lightning: 26.8 (#127)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Hard Prompts | 1267 | 1337 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 10.7% | — |
| Kagi LLM Benchmark | 28.8% | — |
| Chess Puzzles | 0% | — |
| LiveBench Reasoning | 32.8% | — |
| Mystery Game Puzzles | 12% | — |
| DTBench | 54.4% | — |
| LiveBench Data Analysis | 50% | — |
| LMCA | 10.4% | — |
| Epoch Capabilities Index | 126.56 | — |
| LiveBench | 41.3% | — |
| PIQA | 88.7% | — |
Math Nemotron 3.5 Lightning leads
GPT-4o mini: 10.4 (#314), Nemotron 3.5 Lightning: 37.5 (#155)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Math | 1267 | 1359 |
| FrontierMath (Tiers 1-3) | 0.7% | — |
| OTIS Mock AIME 2024-2025 | 6.9% | — |
| Omni-MATH | 28% | — |
| LiveBench Math | 36.3% | — |
| MATH Level 5 | 52.6% | — |
| GSM8K | 91.3% | — |
Knowledge Nemotron 3.5 Lightning leads
GPT-4o mini: 17.7 (#284), Nemotron 3.5 Lightning: 37.5 (#154)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Expert | 1235 | 1356 |
| GPQA Diamond | 37.7% | — |
| SimpleQA Verified | 8.3% | — |
| MMLU-Pro | 60.3% | — |
| Confabulations | 37.2% | — |
| GPQA (HELM) | 36.8% | — |
| BoolQ | 88.7% | — |
| MMLU | 81.8% | — |
Multimodal Not comparable
GPT-4o mini: 25.9 (#122), Nemotron 3.5 Lightning: —
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Vision | 1066 | — |
| Video-MME | 64.8% | — |
| GeoBench | 64% | — |
| VPCT | 34% | — |
Multilingual Nemotron 3.5 Lightning leads
GPT-4o mini: 42.0 (#199), Nemotron 3.5 Lightning: 44.0 (#180)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Non-English | 1266 | 1295 |
| LMArena Chinese | 1265 | 1359 |
| LMArena French | 1297 | 1366 |
| LMArena German | 1272 | 1282 |
| LMArena Japanese | 1216 | 1206 |
| LMArena Korean | 1195 | 1238 |
| LMArena Russian | 1275 | 1253 |
| LMArena Spanish | 1276 | 1345 |
Instruction Following Nemotron 3.5 Lightning leads
GPT-4o mini: 61.9 (#239), Nemotron 3.5 Lightning: 69.6 (#170)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Instruction Following | 1258 | 1318 |
| LiveBench Instruction Following | 56.8% | — |
| IFEval | 78.2% | — |
Long Context Too close to call
GPT-4o mini: 39.1 (#186), Nemotron 3.5 Lightning: 39.9 (#165)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Longer Query | 1289 | 1314 |
Writing & Preference Nemotron 3.5 Lightning leads
GPT-4o mini: 39.5 (#248), Nemotron 3.5 Lightning: 48.5 (#201)
| Benchmark | GPT-4o mini | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Text | 1286 | 1327 |
| LMArena Creative Writing | 1268 | 1254 |
| EQ-Bench Creative Writing | 873 | 1280 |
| LMArena Multi-Turn | 1285 | 1328 |
| Short-Story Creative Writing | 67.2% | — |
| WildBench | 79.1% | — |
| LiveBench Language | 28.6% | — |
Frequently asked questions
Is GPT-4o mini better than Nemotron 3.5 Lightning?
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 25.5 on the Noometry Index.
Which is cheaper, GPT-4o mini or Nemotron 3.5 Lightning?
Nemotron 3.5 Lightning is cheaper. It lists at $0.05 per million input tokens and $0.20 per million output tokens; GPT-4o mini lists at $0.15 and $0.60.
Is GPT-4o mini or Nemotron 3.5 Lightning better for coding?
Nemotron 3.5 Lightning scores higher on coding benchmarks: 40.4 versus 22.0 in the Noometry coding category.
Which has the bigger context window?
Nemotron 3.5 Lightning does, with 262K tokens against 128K.
How many benchmarks do GPT-4o mini and Nemotron 3.5 Lightning share?
18 benchmarks have published results for both models. GPT-4o mini has 60 scored results on Noometry and Nemotron 3.5 Lightning has 18.