AI model matchup
GPT-5.1 Thinking vs Nemotron 3 Ultra (550B A55B)
A side-by-side look at published capability scores, listed API pricing, speed, context, and license - to help you decide which trade-offs fit your work.
GPT-5.1 ThinkingvsNemotron 3 Ultra (550B A55B)
Nemotron 3 Ultra (550B A55B) leads the RankLLMs Index by 0.1 points (37.0 vs 36.9). Verified API Pricing: $1.25 (GPT-5.1 Thinking) vs Free/Open Source (Nemotron 3 Ultra (550B A55B)) per 1M tokens.
Capability profile
Speed duel
tpsPrice duel
$/1MShorter bar = cheaper. Blended per 1M tokens.
| Metric | GPT-5.1 Thinking | Nemotron 3 Ultra (550B A55B) |
|---|---|---|
| RankLLMs Overall Score | 36.9 pts | 37.0 pts ▲ |
| Reasoning | 36.6 ▲ | 36.3 |
| Coding | 21.0 | 22.1 ▲ |
| Agentic Tool Use | 0.0 | 13.4 ▲ |
| Code Arena Elo | 1087 | null |
| Inference Speed | 50 tps | 161 tps ▲ |
| API Price (per 1M tokens) | $1.25 | Free/Open Source |
| Context Window | 400K | 1M |
| License | Proprietary | Open Source |
| Global Rank | #74 | #73 ▲ |
Decision notes
What the numbers suggest
Nemotron 3 Ultra (550B A55B) leads the RankLLMs overall score by 0.1 points. Nemotron 3 Ultra (550B A55B) has the lower listed API rate (Free/Open Source per 1M tokens).
Treat the overall index as a starting point, then prioritize the benchmark that resembles your task. Published scores and provider pricing can change; this comparison does not represent a first-party test of either model.
- Overall index
- Nemotron 3 Ultra (550B A55B) leads
- 36.9 to 37.0 pts
- Coding score
- Nemotron 3 Ultra (550B A55B) leads
- 21.0 to 22.1 pts
- Reasoning score
- GPT-5.1 Thinking leads
- 36.6 to 36.3 pts
- Agentic score
- Nemotron 3 Ultra (550B A55B) leads
- 0.0 to 13.4 pts
Choose by workload
Which profile fits your use?
OpenAI
Consider GPT-5.1 Thinking when
your workload gives more weight to the higher listed reasoning score. Compare those signals with your own task mix, latency needs, and budget.
View GPT-5.1 Thinking profileNVIDIA
Consider Nemotron 3 Ultra (550B A55B) when
your workload gives more weight to the higher listed coding score, the higher overall index score, the lower listed API rate. Compare those signals with your own task mix, latency needs, and budget.
View Nemotron 3 Ultra (550B A55B) profile