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StepFun models

2 models in this catalog are created by StepFun; 0 additional models are available through its hosting offerings.

Updated: Data as of:
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Where StepFun’s models perform best

Global benchmark rankings of models created or hosted by StepFun; these are model scores, not measurements of hosting performance.
ModelBenchmarkMeasuresScore
Step 5 PreviewHumanity's Last Exam ↗Stable HLE — text-only subsetExpert reasoning46.5%#16 of 68
Step 5 PreviewTerminal-Bench ↗4.0 / mini-swe-agentWorking in a terminal33.3%#19 of 56
Step 5 PreviewAA-Briefcase ↗1.1 / combined EloBusiness deliverables1,425 Elo#21 of 57
Step 5 PreviewAutomationBench-AA ↗1.0.6 / AA private 657Work automations51%#28 of 55
Step 5 PreviewLiveBench: Coding ↗2.0 / 2026-10-25Coding with LiveBench85.6%#14 of 25
Step 5 PreviewAgent Index ↗v1.2 PreviewOverall agent capability18.5 / 100#21 of 26

All models

2 models
All StepFun models in the dataset, newest reported release dates first.
ModelDate releasedModel details
Step 3.7 FlashNot reportedView model
Step 5 PreviewNot reportedView model