# Step Flash

> Step Flash, a family of models by StepFun, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a…

- Canonical: https://www.anchorterminal.com/tools/step-flash
- Markdown: https://www.anchorterminal.com/tools/step-flash.md (~500 tokens)
- Slim: https://www.anchorterminal.com/tools/step-flash.min.md (~430 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/tools/step-flash.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

# Step Flash

> Indexed, not reviewed: facts from OpenRouter and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: model family, by StepFun
- Category: Model APIs & inference (https://www.anchorterminal.com/categories/inference.md)
- Listed because: OpenRouter lists it, with prices from the providers that serve it.
- What OpenRouter says: Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...

## Models (2)

| Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports |
| --- | --- | --- | --- | --- | --- | --- |
| Step 3.7 Flash | `stepfun/step-3.7-flash` | 2026-05 | 262k | $0.20 | $1.15 | tools, structured output, reasoning, caching, image, video |
| Step 3.5 Flash | `stepfun/step-3.5-flash` | 2026-01 | 262k | $0.10 | $0.30 | tools, reasoning |

Prices and limits as OpenRouter lists them; a provider's own price can differ.

- JSON: https://www.anchorterminal.com/api/v1/tools/step-flash.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming