Step 5 Preview Launch Night 🚀 @SF

We just launched Step 5 Preview, and we'd love for you to be among the first to see it up close.

Step 5 Preview is StepFun's new open-weights flagship LLM for real-world agentic work: coding, professional knowledge work, and finance. Frontier-level results, at a cost that makes running agents all day actually affordable. Available now, open weights on October 15.

Meet the model. Meet fellow founders. Whether you're building agents or just curious about the model, join us in San Francisco on October 22 for the launch, a founder panel, and an evening of good conversations over food and drinks.

Agenda

6:00 PM · Check-in, 🍾 light dinner, drinks & mingle

6:30 PM · 🚀 Meet Step 5 Preview

Meet the team behind the model. Pretraining researcher Hongyu Zhou will introduce Step 5 Preview, followed by a live Q&A. Bring your questions about the model and what you need as you build agents.

7:15 PM · 🗣️ Panel: Build for the Next Model

As models get better, what's still worth building? Founders and builders on product opportunities and lasting value. Speakers announced soon.

8:00 PM · 🤝 Find Your Match

A full hour to meet fellow founders and builders. Pick a sticker that reflects your role or interests, then use it to start a conversation over food and drinks.

9:00 PM · Wrap-up

Who Should Join

Anyone building with AI, or just curious what Step 5 Preview can do. Developers, founders, researchers, product folks, and the investors who back them. Come for the model, stay for the people.

About StepFun

StepFun is a leading foundation model company committed to the long-term pursuit of AGI. Its Step model family spans language, audio, multimodal, and reasoning capabilities. StepFun also works closely with intelligent devices, with its models deployed across smartphones, automotive, and in-car agent experiences.

Step 5 Preview is StepFun’s latest flagship LLM.

→ API Platform: platform.stepfun.ai
→ Step 5 Preview: Model overview
→ X: @StepFun_ai