← All models
StepFun · Language model
Step 3.7 Flash
stepfun/step-3.7-flash- Language
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...
Specifications
- Context window
- 262,144 tokens
- Max output
- 230,400 tokens
- Input
- text, image, video
- Output
- text
- Reasoning effort
- high, medium, low (always on)
- Tokenizer
- Other
Supported parameters
Accepted by the model and forwarded as-is by the gateway.
- frequency_penalty
- logit_bias
- logprobs
- max_tokens
- min_p
- presence_penalty
- reasoning
- reasoning_effort
- repetition_penalty
- response_format
- seed
- stop
- structured_outputs
- temperature
- tool_choice
- tools
- top_k
- top_logprobs
- top_p
Use it
POST /api/v1/chat/completions · MCP chat · full reference
curl https://omnirail.org/api/v1/chat/completions \
-H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"stepfun/step-3.7-flash","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'