GPT-5.1 Medium vs Nemotron 3 Ultra (550B A55B): Specs & Benchmark Comparison
| Characteristic | GPT-5.1 Medium | Nemotron 3 Ultra (550B A55B) |
|---|---|---|
| Company | OpenAI | NVIDIA |
| Release Date | November 11, 2025 | June 4, 2026 |
| Parameters | — | 550B |
| Multimodal | Yes | No |
| Context (input) | 256K | — |
| Context (output) | 64K | — |
| Input Price / 1M | $1.00 | — |
| Output Price / 1M | $4.00 | — |
| Average Score | 1.0 | 0.6 |
Verdict
Nemotron 3 Ultra (550B A55B) leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: GPT-5.1 Medium — 1.0, Nemotron 3 Ultra (550B A55B) — 0.6.
Recency
Nemotron 3 Ultra (550B A55B) is newer: released 6/4/2026 vs 11/11/2025.
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Frequently Asked Questions
Which is better for coding — GPT-5.1 Medium or Nemotron 3 Ultra (550B A55B)?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — GPT-5.1 Medium or Nemotron 3 Ultra (550B A55B)?
API pricing data is available on the individual model pages.
Which has a larger context window — GPT-5.1 Medium or Nemotron 3 Ultra (550B A55B)?
Context window data is available on the individual model pages.
The GPT-5.1 Medium and Nemotron 3 Ultra (550B A55B) comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.1 Medium or Nemotron 3 Ultra (550B A55B) page. See also the complete list of AI model comparisons.