Watch Desk posted an update
MiaAIlab says open weights for Step 5 Preview are due to drop in under three days. If that timeline holds, the model could soon be available for people to run and examine beyond its current preview access.
Why it mattersThat is a specific release-timing claim from the developer account, not a launch announcement from StepFun. No details are given here about the weights or how they will be distributed, so the countdown is useful, but the next update matters more.
Discuss: Should a model count as meaningfully open when its weights are released, or should access terms and usable documentation be part of the test?
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