# Kimi K3.1 Pro vs Kronos (slim)

> Kronos scores 55.2 (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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- 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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Kronos scores 55.2 (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 agent interface. 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
- Kronos: C 55.2, rank #122 of 160 open-weight models · https://www.anchorterminal.com/tools/kronos.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 Agent interface, 65 against 60.
- Kronos, good for Agents that need a quick local forecast or synthetic sample of a candlestick series on modest hardware, for research or as one input among others. Ahead on Reach, 55 against 40; Documentation and upkeep, 61 against 51.

| Category | Kimi K3.1 Pro | Kronos |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 40 | 55 |
| Risk (20%) | 50 | 50 |
| Agent interface (10%) | 65 | 60 |
| Documentation and upkeep (10%) | 51 | 61 |

| Fact (where they differ) | Kimi K3.1 Pro | Kronos |
| --- | --- | --- |
| Vendor | Moonshot AI | Yu Shi (shiyu-coder, NeoQuasar), Tsinghua University |
| Licence | Kimi K3.1 Pro License (modified MIT) | MIT |
| Last release | 2026-11-05 | 2026-04-13 |
| Popularity | none | 43k stars |

Why the edge:
- Reach, Kronos +15: Kimi K3.1 Pro 40 (Memory 0, the only build is Moonshot's 1,561 GB MXFP4 release, far above 256 GB.); Kronos 55 (Memory 30, the publisher's Kronos-mini with its tokeniser is 0.03 GB and even Kronos-base is 0.43 GB in FP32. Runtimes 0, it runs only through the publisher's o…)
- Documentation and upkeep, Kronos +10: Kimi K3.1 Pro 51 (Model card 11, no limitations, languages or cut-off.); Kronos 61 (Model card 11, intended use, architecture, parameters and context are there, limitations, languages and a cut-off aren't.)
- Agent interface, Kimi K3.1 Pro +5: Kimi K3.1 Pro 65 (Chat template 10, the format is only code to run.); Kronos 60 (Read for a forecasting model, the tool-calling, trained tool calling and structured-output lines stand for what it takes and returns.)