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Step 3.7 Flash from @StepFun_ai is now available on Design Arena as of the…

Brief

Step 3.7 Flash from @StepFun_ai launched on Design Arena (announced 2026-05-29). The open-weight model advertises 400 TPS throughput, a 256K content window, and built-in image and video handling, positioned for agentic applications, coding tasks, and search-oriented workflows; followers are invited to test it on the platform.

Why it matters

Step 3.7 Flash from @StepFun_ai is now available on Design Arena as of the 2026-05-29 post

Key details

  • The model is an open-weight system delivering 400 TPS with a 256K token/content window and native image and video support, targeted at agentic, coding, and search workflows
Source evidence

Now live on @Designarena — go test it out 👀

Design Arena (@Designarena)

Step 3.7 Flash is now on Design Arena!

A 400TPS open-weight model with a 256K content window, built for agentic, coding, and search workflows, with native image and video support.

Big congrats to the @StepFun_ai team on the launch!

— https://nitter.net/Designarena/status/2060165949991551334#m