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StepFun

Explore free AI models, compare capabilities and benchmarks, and find API providers offering them.

Explore 2 models

At a glance

Free models
2
API providers
3
With reasoning
2
With tool calling
2
Highest Coding Index39.6

Based on models in this catalogue. Availability and free limits vary by model.

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Models by StepFun.

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2 results

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...

S
StepFun

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...

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These providers offer free access to StepFun models.

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