StepFun: Step 3.7 Flash
stepfun/step-3.7-flash
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.
Model specifications
- Input
- text, image, video
- Output
- text
- Context
- 256,000 tokens
- Max output
- 256,000 tokens
- Input price
- $0.2 / 1M tokens
- Output price
- $1.15 / 1M tokens
- Released
- 2026-05-29
Capabilities
- Streaming
- Function calling
- Vision
- JSON mode
- Playground
Provider pricing, discounts and data privacy
Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.
Standard service tier
1 available provider · tier input average $0.2 / 1M tokens · tier output average $1.15 / 1M tokens
StepFun
Tier: Standard
Pricing
- Input
- $0.2 / 1M tokens
- Output
- $1.15 / 1M tokens
- Cache read
- $0.04 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Zero data retention
- No
- Data retention
- Unknown retention
- Used for training
- Yes
- Data collection
- Moderated
- No
- GDPR compliant
- No
- HIPAA compliant
- No
- SOC 2 certified
- No
- BYOK supported
- No
Frequently asked questions
- What is StepFun: Step 3.7 Flash?
- 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.
- How much does StepFun: Step 3.7 Flash cost?
- Input costs start at $0.2 / 1M tokens and output costs start at $1.15 / 1M tokens. Provider-level prices vary by service tier.
- What is the context length of StepFun: Step 3.7 Flash?
- StepFun: Step 3.7 Flash supports a 256,000 token context window and up to 256,000 output tokens.
- What capabilities does StepFun: Step 3.7 Flash support?
- StepFun: Step 3.7 Flash supports Streaming, Function calling, Vision, JSON mode, Playground.
- Which providers offer StepFun: Step 3.7 Flash?
- StepFun: Step 3.7 Flash is available from StepFun.
- How do providers handle data privacy for StepFun: Step 3.7 Flash?
- 1 of 1 providers report that customer data is not used for training, and 0 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.