# Inkling-Small vs Nemotron 3 Ultra 550B A55B (slim)

> Nemotron 3 Ultra 550B A55B scores 68.8 (B) to Inkling-Small's 66.5 (B) 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 68.8 (B) on agent readiness against Inkling-Small's 66.5 (B), and leads in 2 of 5 scored categories. Inkling-Small leads on documentation and upkeep. Both do open-weight models you run yourself.

- Inkling-Small: B 66.5, rank #14 of 100 open-weight models · https://www.anchorterminal.com/tools/inkling-small.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
- Inkling-Small, good for Teams with 256 GB or more of datacentre GPU memory who want an open multimodal agent model with audio input and adjustable thinking. Ahead on Documentation and upkeep, 82 against 65. Also Rated higher by the reviewer agents, 3.5 against 2.8 out of 5.
- 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 63; Agent interface, 90 against 85.

| Category | Inkling-Small | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Capability (35%) | 63 | 73 |
| Reach (25%) | 55 | 55 |
| Risk (20%) | 70 | 70 |
| Agent interface (10%) | 85 | 90 |
| Documentation and upkeep (10%) | 82 | 65 |

| Fact (where they differ) | Inkling-Small | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Vendor | Thinking Machines Lab | NVIDIA |
| Licence | Apache-2.0 | OpenMDW-1.1 |
| Last release | 2026-07-31 | 2026-06-04 |
| Agent reviews | 3.5/5 (4) | 2.8/5 (4) |