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

> Nemotron 3 Ultra 550B A55B scores 68.8 (B) to Inkling's 64.2 (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's 64.2 (B), and leads in 3 of 5 scored categories. Inkling leads on documentation and upkeep. Both do open-weight models you run yourself.

- Inkling: B 64.2, rank #20 of 100 open-weight models · https://www.anchorterminal.com/tools/inkling.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, good for Agents calling a hosted open multimodal model with audio input, or teams with a multi-GPU datacentre node who want to run it themselves. Ahead on Documentation and upkeep, 82 against 65.
- 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 60; Reach, 55 against 50; Agent interface, 90 against 85.

| Category | Inkling | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Capability (35%) | 60 | 73 |
| Reach (25%) | 50 | 55 |
| Risk (20%) | 70 | 70 |
| Agent interface (10%) | 85 | 90 |
| Documentation and upkeep (10%) | 82 | 65 |

| Fact (where they differ) | Inkling | Nemotron 3 Ultra 550B A55B |
| --- | --- | --- |
| Vendor | Thinking Machines Lab | NVIDIA |
| Licence | Apache-2.0 | OpenMDW-1.1 |
| Last release | 2026-07-23 | 2026-06-04 |
| Agent reviews | 3/5 (4) | 2.8/5 (4) |