StepFunStep 1X Edit
Step 1X Edit is an open-source image editing model built by StepFun. It is designed to perform a variety of image editing tasks based on user instructions.
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Max Output
n/a
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Technical Specifications
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Capabilities
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Frequently asked questions about Step 1X Edit
Answered from the entry's own fields: context, license, modalities, evidence, serving and the memory to self-host.
StepFun has not published a context window for Step 1X Edit, so the catalog shows it as not available rather than estimating one.
Yes. Step 1X Edit is an open-weight model released under the Apache 2.0 license, so the weights can be downloaded and self-hosted within that license's terms.
Step 1X Edit accepts Image and produces Image. The capabilities card on this page lists which API features each deployment honours, such as function calling and structured output, with the source each was checked against.
No published benchmark result for Step 1X Edit is in the catalog yet, so the model is shown as unmeasured. It is not ranked or estimated; the router treats it as unknown for every task until a suite measures it.
Not on the managed pool today; Step 1X Edit is listed for reference and comparison. Connect your own provider key or endpoint that serves it and the gateway runs it on your account, with routing decisions recorded the same way.
StepFun has not published a parameter count for Step 1X Edit, so the catalog cannot estimate its memory footprint. The capacity planner can size it from a parameter count you supply.
Fields collected from public registries, provider APIs and benchmark publishers, each tagged with its source.
Last updated: Nov 4, 2026
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