Time to share why I am bullish on @StepFun_ai (not “Step” though): 1. Deep research root from ResNet to scaling Laws, and many works on multimodality 2. Years of experience building AI infra and training intelligent and efficient models at scale 3. Models already powering AI on phones and cars So potential has solid foundation. Proud of the whole team!

Really enjoyed “Are we running too many agents” hosted by @exedev, with great talks from Josh Synder from Josh Wills from Datology AI, and @beyang from @AmpCode. A major topic was about the human side of working with agents (sometimes with too many agents lol) I resonate with the main point by Josh from - running more agents usually means more context switching and giving more attention to them instead of focusing more on understanding your work. We definitely need to understand the agent systems we’re using with more attention, and take full responsibility for what it does. Also learnt a lot from Josh Wills’ advice: use agents to complement our bad habits at work. For example, we can ask for simplicity from our agents when we often overcomplicate tasks. Then @beyang’s talk about Amp shares some interesting finding about the agent workflow: making parallel work effective means improving the whole agent setup, including managed sandboxes and better ways for users to interact with Agents workflow. Agents could generate multiple options so users can compare at once, and they can show diagrams to help us understand the changes. These are all parts that make human–agent collaboration more useful in practice. Excited to explore how StepFun can support workflows like these.

So excited to bring Step 5 Preview to y’all! If you’ve got an idea or what to build something for yourself, let’s make it happen: whether you’re a coder, a builder, or a user. Tag me when you share your best builds with StepFun models. I wanna see what you doing. All best

One of our teammates at StepFun had his X account hacked: The account handle was changed to @ContentCase, and it was used to send fake messages to people on X. The account is currently suspended. I’ve been in touch with him, and @sheriyuo is his temporary new account. We’re still working on recovering the original account and hopefully he’ll be able to get it back and continue to use it Please be careful with any unexpected DMs or messages you may have received from ANY account. Also, take a minute to check your own account security and be extra careful with suspicious links, even when they seem to come from someone or projects you know. Definitely don’t want to see this happen again. If anyone at X can help with the recovery, or knows the right person to contact, please reach out. We’d really appreciate it! @X @StepFun_ai

Step Plan Mini and Plus are BACK, with limited availability for now. We’ll keep opening more spots and posting updates as we go. Have fun building with StepFun models 🫡

Thank you all for the support since the Step 5 Preview launch. I honestly didn’t expect to see so many new people joined our Discord and start building with our new model this quickly. here’s a quick update regarding the question received: - Step Plan subscriptions are temporarily unavailable, and we will share an update soon on when they reopen. - The API experienced some instability yesterday. You should be able to use it. Our new model matters, but so does the developer experience. I will keep you guys posted.

Really good vibes today. Lots of people stopped by to chat about StepFun, our models, and what we’re doing next with open source. Also met builders from all over the world working on MCP servers, agent infra, local AI hardware, enterprise benchmarks, and a bunch of other cool stuff.

Tried Step 3.7 Flash in @cline with Playwright MCP. - Select the Step 3.7 Flash model (free) - Installed Playwright MCP through one-click prompt - Let it open the web page, interact with it, and capture screenshots This shows the workflow: efficient agentic model + good tools + fast browser automation. Step 3.7 Flash is free to try in Cline this month. Cheers guys! 😄