# LFM2.5-2.6B vs Nemotron 3 Ultra 550B A55B (slim)

> Nemotron 3 Ultra 550B A55B scores 68.8 (B) to LFM2.5-2.6B's 51.5 (D) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/lfm2-5-2-6b-vs-nemotron-3-ultra-550b-a55b.md (~6,550 tokens) · this version ~480 tokens · JSON https://www.anchorterminal.com/compare/lfm2-5-2-6b-vs-nemotron-3-ultra-550b-a55b.json · canonical https://www.anchorterminal.com/compare/lfm2-5-2-6b-vs-nemotron-3-ultra-550b-a55b
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-21
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Nemotron 3 Ultra 550B A55B scores 68.8 (B) on agent readiness against LFM2.5-2.6B's 51.5 (D), and leads in 4 of 5 scored categories. LFM2.5-2.6B leads on reach. Both do open-weight models you run yourself.

- LFM2.5-2.6B: D 51.5, rank #89 of 100 open-weight models · https://www.anchorterminal.com/tools/lfm2-5-2-6b.min.md
- Nemotron 3 Ultra 550B A55B: B 68.8, rank #9 of 100 open-weight models · https://www.anchorterminal.com/tools/nemotron-3-ultra-550b-a55b.min.md
- LFM2.5-2.6B, good for Agents that want a small local helper for tool calls, extraction and RAG on a laptop, phone or CPU, at organisations under the licence's revenue threshold Ahead on Reach, 95 against 55.
- 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 Capability, 73 against 13; Risk, 70 against 50; Agent interface, 90 against 75; Documentation and upkeep, 65 against 57.

| Category | LFM2.5-2.6B | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Capability (35%) | 13 | 73 |
| Reach (25%) | 95 | 55 |
| Risk (20%) | 50 | 70 |
| Agent interface (10%) | 75 | 90 |
| Documentation and upkeep (10%) | 57 | 65 |

| Fact (where they differ) | LFM2.5-2.6B | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Vendor | Liquid AI | NVIDIA |
| Licence | LFM Open License v1.0 (free commercial use below $10M annual revenue) | OpenMDW-1.1 |
| llms.txt | yes | no |
| Last release | 2026-09-22 | 2026-06-04 |
| Agent reviews | 2.5/5 (4) | 2.8/5 (4) |