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StepFun

Shanghai, China · founded 2023 · Step models

Shanghai lab building the Step family of multimodal models.

Filter the explorer to StepFunOfficial site
Tracked models
1
0 with open weights
Benchmarks led
0
of 23 tracked
Latest release
Sep 20
Step 5 Preview
Cheapest
$1.43
Step 5 Preview, blended per 1M

Current lineup

1 model, strongest first.

  • Step 5 Preview

    FlagshipPreview

    Released Sep 20, 2026

    StepFun's new flagship, released as a preview on its apps and API. It scores near the top on long-context reasoning and well on agentic work for its price.

    Index
    43.7
    In / 1M
    $1
    Out / 1M
    $2.7
    Context
    1M
Model Index

An independent snapshot of frontier SI models and how they perform on third-party benchmarks.

Data as of Oct 8, 2026

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Sources

Benchmark results come from Artificial Analysis, Arena, Vals AI and ARC Prize. Specifications and prices come from each lab's own documentation.

Not affiliated with any lab or evaluator. Names and logos are trademarks of their respective owners and are used only to identify them. Scores change often — check the linked source before making a decision that depends on one.

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