
Stepfun
Scale-up intelligence possibilities for everyone
268 followers
Scale-up intelligence possibilities for everyone
268 followers
StepFun is a frontier AI platform building powerful, actionable intelligence with the Step series of models.
This is the 2nd launch from Stepfun. View more

Step 3.7 Flash
Launching today
An Apache 2.0 open-weight Flash model for real-world agents. Step 3.7 Flash combines vision, coding, search, tool use, 256K context, ~11B active params, and up to 400 TPS.




Free
Launch Team
Flowtica Scribe
Hi everyone!
Step 3.7 Flash is basically an efficiency-first model for real-world agents.
It’s fast (up to 400 TPS), handles vision + tool use quite well, and stays relatively stable on longer agent runs. Also plays nicely with common harnesses like @Claude Code, @OpenClaw and @Kilo Code.
The weights are also open under Apache 2.0.
Love this kind of Flash model: not trying to be the biggest, but trying to be the one agents can actually run a lot.
Kilo Code
@Stepfun's Step 3.7 Flash is one of the best open-weight models you can run right now.
Perfect timing to play with Kilo's new VS Code extension launched this month.
stepfun is an interesting company to watch because they're operating in a space where the obvious question is always why this over Qwen or Mistral for open weight deployments. the vision plus tool use combination at this size is differentiated but the developer ecosystem and tooling support matters as much as the benchmarks at this point. what does the integration story actually look like, is it compatible with existing inference frameworks or does it need custom setup