Step 3.7 Flash
stepfun/step-3.7-flash
byStepFun256K contextReleased May 28, 2026ToolsVisionReasoning
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...
- Input
- $0.217
- per 1M tokens
- Output
- $1.25
- per 1M tokens
- Cached input
- $0.0435
- per 1M tokens
Lowest price across providers. You are billed from your Ditfa Platform credits per token used.
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Quickstart
Use any OpenAI SDK. Point it at the Ditfa Platform base URL and use an sk-dp- key.
curl https://gateway.ditfa.com/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $DITFA_API_KEY" \
-d '{
"model": "stepfun/step-3.7-flash",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}'