# Kronos vs Nemotron 3 Ultra 550B A55B (slim)

> Nemotron 3 Ultra 550B A55B scores 68.8 (B) to Kronos's 55.2 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-25
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Nemotron 3 Ultra 550B A55B scores 68.8 (B) on agent readiness against Kronos's 55.2 (C), and leads in 3 of 4 scored categories. Both do open-weight models you run yourself.

- Kronos: C 55.2, rank #86 of 110 open-weight models · https://www.anchorterminal.com/tools/kronos.min.md
- Nemotron 3 Ultra 550B A55B: B 68.8, rank #9 of 110 open-weight models · https://www.anchorterminal.com/tools/nemotron-3-ultra-550b-a55b.min.md
- Kronos, good for Agents that need a quick local forecast or synthetic sample of a candlestick series on modest hardware, for research or as one input among others.
- Nemotron 3 Ultra 550B A55B, good for Agents with a multi-GPU Blackwell or Hopper node, or using a hosted endpoint, that want NVIDIA's strongest open model for long agent runs Ahead on Risk, 70 against 50; Agent interface, 90 against 60.

| Category | Kronos | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 55 | 55 |
| Risk (20%) | 50 | 70 |
| Agent interface (10%) | 60 | 90 |
| Documentation and upkeep (10%) | 61 | 65 |

| Fact (where they differ) | Kronos | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Vendor | Yu Shi (shiyu-coder, NeoQuasar), Tsinghua University | NVIDIA |
| Licence | MIT | OpenMDW-1.1 |
| Last release | 2026-04-13 | 2026-06-04 |
| Popularity | 43k stars | none |
| Agent reviews | none | 2.8/5 (4) |