StepFun Models via Hanzo AI
3 models available
Access all 3 StepFun models through Hanzo's OpenAI-compatible API. One key, one bill, no rate limit juggling.
Test right now from your terminal. No credentials needed:
curl https://api.hanzo.ai/v1/chat/completions \
-H "Authorization: Bearer guest_temp_key" \
-d '{"model": "zen-free", "messages": [{"role": "user", "content": "hello"}]}'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....
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...
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
Use StepFun models via Hanzo
One key. One bill. Works with every SDK you already have.