Best Input Price
$0.00 / 1M
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 per token. The model supports a 256K context window and exposes selectable reasoning levels (high/medium/low), letting callers trade off speed, cost, and depth of reasoning. Designed for coding, agentic workflows, structured outputs, and long-context productivity tasks.
Context Window
262,144 tokens
Reasoning
Supported
Tool Calling
Supported
Released
2026-05-29
Inference Providers (20)
| Provider | Model ID | Context | Input / 1M | Output / 1M | Action |
|---|---|---|---|---|---|
| StepFun Step Plan (Global) | step-3.7-flash | 256,000 | $0.00 | $0.00 | Docs ↗ |
| Kilo Gateway | stepfun/step-3.7-flash:free | 262,144 | $0.00 | $0.00 | Docs ↗ |
| StepFun Step Plan (China) | step-3.7-flash | 256,000 | $0.00 | $0.00 | Docs ↗ |
| UnoRouter | step-3.7-flash:free | 256,000 | $0.00 | $0.00 | Docs ↗ |
| Kenari | step-3-7-flash:free | 256,000 | $0.00 | $0.00 | Docs ↗ |
| StepFun (Global) | step-3.7-flash | 256,000 | $0.18 | $1.11 | Docs ↗ |
| StepFun (China) | step-3.7-flash | 256,000 | $0.18 | $1.11 | Docs ↗ |
| Ambient | stepfun/step-3.7-flash | 262,144 | $0.19 | $1.14 | Docs ↗ |
| Deep Infra | stepfun-ai/Step-3.7-Flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| EmpirioLabs AI | step-3-7-flash | 256,000 | $0.20 | $1.15 | Docs ↗ |
| NanoGPT | stepfun/step-3.7-flash:thinking | 262,144 | $0.20 | $1.15 | Docs ↗ |
| LLM Gateway | novita/step-3.7-flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| OpenRouter | stepfun/step-3.7-flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| ZenMux | stepfun/step-3.7-flash | 256,000 | $0.20 | $1.15 | Docs ↗ |
| Hugging Face | stepfun-ai/Step-3.7-Flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| Vercel AI Gateway | stepfun/step-3.7-flash | 256,000 | $0.20 | $1.15 | Docs ↗ |
| Eden AI | deepinfra/stepfun-ai/Step-3.7-Flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| Requesty | step-3.7-flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| DevPass (LLM Gateway) | step-3.7-flash | 262,144 | $0.20 | $1.15 | Docs ↗ |
| AIHubMix | step-3.7-flash | 256,000 | $0.22 | $1.32 | Docs ↗ |