stepfun/step-3.5-flash
Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....
The most important technical and pricing details in one place.
Gateway-compatible routes are tried from the lowest cost; other sources are shown for catalog reference.

Current request, token, and latency data across TamgaStudio.
Call StepFun: Step 3.5 Flash with a single request through the OpenAI-compatible TamgaStudio API. Create your API key from the API Keys section in your dashboard.
curl https://api.tamga.studio/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer tl-sk-XXXXXX" \
-d '{"model": "stepfun/step-3.5-flash", "messages": [{"role": "user", "content": "Hello!"}]}'
Common questions about this model.
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