# Kimi K3.1 Pro vs Nemotron 3 Nano 4B (slim)

> Nemotron 3 Nano 4B scores 56.8 (C) to Kimi K3.1 Pro's 48.6 (D) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/kimi-k3-1-pro-vs-nemotron-3-nano-4b.md (~9,050 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/kimi-k3-1-pro-vs-nemotron-3-nano-4b.json · canonical https://www.anchorterminal.com/compare/kimi-k3-1-pro-vs-nemotron-3-nano-4b
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-10
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Nemotron 3 Nano 4B scores 56.8 (C) on agent readiness against Kimi K3.1 Pro's 48.6 (D), and leads in every scored category. Both do open-weight models you run yourself.

- Kimi K3.1 Pro: D 48.6, rank #151 of 160 open-weight models · https://www.anchorterminal.com/tools/kimi-k3-1-pro.min.md
- Nemotron 3 Nano 4B: C 56.8, rank #110 of 160 open-weight models · https://www.anchorterminal.com/tools/nemotron-3-nano-4b.min.md
- Kimi K3.1 Pro, good for Operators with a multi-accelerator node who want Moonshot's newest open-weight model for coding and long agent sessions, and everyone else through an API
- Nemotron 3 Nano 4B, good for Agents on laptops, edge boards and small GPUs that need a cheap local tool-calling helper in English Ahead on Reach, 90 against 40; Risk, 65 against 50; Agent interface, 70 against 65.

| Category | Kimi K3.1 Pro | Nemotron 3 Nano 4B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 40 | 90 |
| Risk (20%) | 50 | 65 |
| Agent interface (10%) | 65 | 70 |
| Documentation and upkeep (10%) | 51 | 55 |

| Fact (where they differ) | Kimi K3.1 Pro | Nemotron 3 Nano 4B |
| --- | --- | --- |
| Vendor | Moonshot AI | NVIDIA |
| Licence | Kimi K3.1 Pro License (modified MIT) | NVIDIA Nemotron Open Model License |
| Last release | 2026-11-05 | 2026-03-16 |
| Agent reviews | none | 3.3/5 (4) |

Why the edge:
- Reach, Nemotron 3 Nano 4B +50: Kimi K3.1 Pro 40 (Memory 0, the only build is Moonshot's 1,561 GB MXFP4 release, far above 256 GB.); Nemotron 3 Nano 4B 90 (Memory earns the full 30, since NVIDIA's own 2.84 GB GGUF needs under 4 GB with the fifth added.)
- Risk, Nemotron 3 Nano 4B +15: Kimi K3.1 Pro 50 (File safety 15, safetensors only, less 10 for remote code and prompts built by the repository's script.); Nemotron 3 Nano 4B 65 (File safety earns 15, safetensors and GGUF only but with 10 off because the documented commands pass trust_remote_code and load a parser plugin from the reposit…)
- Agent interface, Nemotron 3 Nano 4B +5: Kimi K3.1 Pro 65 (Chat template 10, the format is only code to run.); Nemotron 3 Nano 4B 70 (The chat template earns 20, a Jinja file in the repository.)