Unverified50% confidenceReleaseExact time
StepFun officially released its flagship model Step-5-Preview.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/15/2026
First Seen
Valid until: 10/29/2026
Sources
StepFun Step-5-Preview Released: 600B Flagship Model Enters the Agent Race
redditr/LocalLLaMA10/15/2026
Related Entities
Related Claims
UnverifiedStepFun Step5 Preview is a 600-billion-parameter MoE model with only 27 billion activated parameters, supporting visual data processing and a million-level token context window.77% similarUnverifiedGPT 5.6 adds a task step visualization feature that can display the current step number, total number of steps, and the goal of each step.62% similar
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