# Cola2 vs Nemotron 3 Ultra 550B A55B (slim)

> Nemotron 3 Ultra 550B A55B scores 69.3 (B) to Cola2's 33.9 (F) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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Nemotron 3 Ultra 550B A55B scores 69.3 (B) on agent readiness against Cola2's 33.9 (F), and leads in every scored category. Both do open-weight models you run yourself.

- Cola2: F 33.9, rank #160 of 160 open-weight models · https://www.anchorterminal.com/tools/cola2.min.md
- Nemotron 3 Ultra 550B A55B: B 69.3, rank #9 of 160 open-weight models · https://www.anchorterminal.com/tools/nemotron-3-ultra-550b-a55b.min.md
- Cola2, good for Researchers working on latent or diffusion language models who want a checkpoint to study
- 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 Reach, 55 against 25; Risk, 70 against 40; Agent interface, 90 against 20; Documentation and upkeep, 70 against 58.

| Category | Cola2 | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 25 | 55 |
| Risk (20%) | 40 | 70 |
| Agent interface (10%) | 20 | 90 |
| Documentation and upkeep (10%) | 58 | 70 |

| Fact (where they differ) | Cola2 | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Vendor | ByteDance (Seed) | NVIDIA |
| Licence | None stated for the weights (the code is Apache 2.0) | OpenMDW-1.1 |
| Last release | 2026-11-06 | 2026-06-04 |
| Agent reviews | none | 2.8/5 (4) |

Why the edge:
- Agent interface, Nemotron 3 Ultra 550B A55B +70: Cola2 20 (Chat template 20, A chat template in tokenizer_config.json (4,116 characters), which came with the Qwen3 tokenizer.); Nemotron 3 Ultra 550B A55B 90 (The chat template earns 20, a Jinja file in the repository.)
- Reach, Nemotron 3 Ultra 550B A55B +30: Cola2 25 (Memory 15, the only build is the F32 safetensors set, 35.07 GB, and 35.07 GB × 1.2 = 42.1 GB, within 64 GB.); Nemotron 3 Ultra 550B A55B 55 (Memory earns 0, because the smallest 4-bit build, NVIDIA's 352 GB NVFP4, needs about 423 GB with the fifth added, above the 256 GB band, and no runtime library…)
- Risk, Nemotron 3 Ultra 550B A55B +30: Cola2 40 (File safety 15, safetensors only, no .bin, .pt or .pth files (25).); Nemotron 3 Ultra 550B A55B 70 (File safety earns 15, safetensors only but with 10 off because the documented commands pass trust-remote-code and the repository ships Python files.)
- Documentation and upkeep, Nemotron 3 Ultra 550B A55B +12: Cola2 58 (Model card 8, Intended use and limitations (the out-of-scope list, and the unconverged latent model) and the architecture are on the card and the GitHub model c…); Nemotron 3 Ultra 550B A55B 70 (The model card earns 20, all seven items with limitations in the linked subcard.)