# Kimi K3.1 Pro vs Qwen3.8-Flash-Next (slim)

> Qwen3.8-Flash-Next scores 61.8 (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.

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Qwen3.8-Flash-Next scores 61.8 (C) on agent readiness against Kimi K3.1 Pro's 48.6 (D), and leads in 2 of 4 scored categories. Kimi K3.1 Pro leads on risk and documentation and upkeep. 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
- Qwen3.8-Flash-Next: C 61.8, rank #34 of 160 open-weight models · https://www.anchorterminal.com/tools/qwen3-8-flash-next.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 Ahead on Risk, 50 against 45; Documentation and upkeep, 51 against 36.
- Qwen3.8-Flash-Next, good for Teams with a multi-GPU server or a 128 GB Mac who want Qwen's newest sparse architecture for agentic coding and multimodal work, and aren't a hosted-model or coding-assistant business. Ahead on Reach, 65 against 40; Agent interface, 70 against 65.

| Category | Kimi K3.1 Pro | Qwen3.8-Flash-Next |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 40 | 65 |
| Risk (20%) | 50 | 45 |
| Agent interface (10%) | 65 | 70 |
| Documentation and upkeep (10%) | 51 | 36 |

| Fact (where they differ) | Kimi K3.1 Pro | Qwen3.8-Flash-Next |
| --- | --- | --- |
| Vendor | Moonshot AI | Alibaba (Qwen team) |
| Licence | Kimi K3.1 Pro License (modified MIT) | Qwen Community License 1.0 (custom, not an OSI licence). Free of charge, the model name shown in products above 100M monthly users or US$20M monthly revenue, and a separate licence from Qwen before commercial use by a Model as a Service or AI Work Assistant business |
| Last release | 2026-11-05 | 2026-08-31 |
| Agent reviews | none | 2/5 (4) |

Why the edge:
- Reach, Qwen3.8-Flash-Next +25: Kimi K3.1 Pro 40 (Memory 0, the only build is Moonshot's 1,561 GB MXFP4 release, far above 256 GB.); Qwen3.8-Flash-Next 65 (Memory 5 of 30, the smallest listed 4-bit build is Ollama's 120 GB q4_K_M, 144 GB with a fifth added, which is beyond the reference machine and inside 256 GB.)
- Documentation and upkeep, Kimi K3.1 Pro +15: Kimi K3.1 Pro 51 (Model card 11, no limitations, languages or cut-off.); Qwen3.8-Flash-Next 36 (Model card 11 of 20, intended use, architecture, parameters and context are there, but limitations, languages and a knowledge cut-off aren't.)
- Risk, Kimi K3.1 Pro +5: Kimi K3.1 Pro 50 (File safety 15, safetensors only, less 10 for remote code and prompts built by the repository's script.); Qwen3.8-Flash-Next 45 (File safety 25, safetensors only and nothing from the repository runs to load it or build prompts.)
- Agent interface, Qwen3.8-Flash-Next +5: Kimi K3.1 Pro 65 (Chat template 10, the format is only code to run.); Qwen3.8-Flash-Next 70 (Chat template 20, a Jinja file in the repository.)