Nemotron 3 Ultra 550B A55B
OpenRouter · 262,144 ctx · from $0.5 input / $2.2 output per 1M tokens
- Input price ranks #257 of 447 priced models (cheaper = better).
- Cheaper alternative with ≥ same context: MiMo-V2.5-Pro at $0.435 input.
| Provider | OpenRouter |
|---|---|
| Family | nemotron |
| Context window | 262,144 |
| Max output | 16,384 |
| Input price | $0.5 |
| Output price | $2.2 |
| Cache read | $0.1 |
| Cache write | — |
| Reasoning | Yes |
| Tool calling | Yes |
| Vision | No |
| Open weights | Yes |
| Knowledge cutoff | |
| Released | 2026-06-04 |
| Last updated | 2026-06-04 |
Identity: OpenRouter; data via models.dev + OpenRouter public APIs. Always confirm on the provider's official pricing page.