Step 1X Edit is StepFun's image generation model. An instruction-following image editing model from StepFun that applies text-guided modifications to existing images with high fidelity.
Specifications
Canonical IDstep-1x-edit
TypeImage Generation
StatusActive
CreatorStepFunStepFun
Input ModalitiesText
Output ModalitiesImage
Benchmarks
Elo Rating
849
#296

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text·
Image
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Step 3 VL 10BAvailable
Step 1X Edit 1.2Available
Step 1X EditCurrent

Model IDs