# Kronos vs Step 3.7 Flash (slim)

> Step 3.7 Flash scores 59.8 (C) to Kronos's 55.2 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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Step 3.7 Flash scores 59.8 (C) on agent readiness against Kronos's 55.2 (C), and leads in 2 of 4 scored categories. Kronos leads on risk and documentation and upkeep. Both do open-weight models you run yourself.

- Kronos: C 55.2, rank #122 of 160 open-weight models · https://www.anchorterminal.com/tools/kronos.min.md
- Step 3.7 Flash: C 59.8, rank #93 of 160 open-weight models · https://www.anchorterminal.com/tools/step-3-7-flash.min.md
- 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 Risk, 50 against 45; Documentation and upkeep, 61 against 39.
- Step 3.7 Flash, good for Teams with a GPU server or a provider account that want an open, long-context agent model with vision Ahead on Reach, 70 against 55; Agent interface, 85 against 60.

| Category | Kronos | Step 3.7 Flash |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 55 | 70 |
| Risk (20%) | 50 | 45 |
| Agent interface (10%) | 60 | 85 |
| Documentation and upkeep (10%) | 61 | 39 |

| Fact (where they differ) | Kronos | Step 3.7 Flash |
| --- | --- | --- |
| Vendor | Yu Shi (shiyu-coder, NeoQuasar), Tsinghua University | StepFun |
| Licence | MIT | Apache-2.0 (metadata and card; no LICENSE file) |
| Last release | 2026-04-13 | 2026-06-03 |
| Popularity | 43k stars | none |

Why the edge:
- Agent interface, Step 3.7 Flash +25: Kronos 60 (Read for a forecasting model, the tool-calling, trained tool calling and structured-output lines stand for what it takes and returns.); Step 3.7 Flash 85 (Chat template 20, chat_template.jinja in the repository (5,723 characters).)
- Documentation and upkeep, Kronos +22: Kronos 61 (Model card 11, intended use, architecture, parameters and context are there, limitations, languages and a cut-off aren't.); Step 3.7 Flash 39 (Model card 14, Intended use, the architecture, the parameters, the context and the language (in the metadata) are on the card.)
- Reach, Step 3.7 Flash +15: 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…); Step 3.7 Flash 70 (Memory 5, the smallest build at 4 bits is StepFun's IQ4_XS GGUF, 104.99 GB with the 3.97 GB projector, and 108.96 GB × 1.2 = 130.8 GB, over what the reference m…)
- Risk, Kronos +5: Kronos 50 (File safety 15, safetensors only, but the only documented loading path is the publisher's Python package in place of a runtime.); Step 3.7 Flash 45 (File safety 15, safetensors and GGUF only, no .bin, .pt or .pth files (25).)