Agent Night Out: Full Stack, Real Costs 🔥 StepFun × TinyFish × Featherless × Monid × MatrAIx

Models. Inference. Tools. Web. Evals. All in one room.

StepFun is bringing together founders and builders from TinyFish, Featherless, Monid, and MatrAIx for a night of food, drinks, and candid conversations in San Francisco.

A model’s token price only tells part of the story. What about tool calls, web execution, failed tasks, and knowing whether the result was any good?

We’ll start with Step 5 Preview, StepFun’s latest open-weights model for long-running AI agents, then hear how teams across the agent stack approach these questions.

What to expect

Light dinner and refreshments through the evening

A look at StepFun's latest model for long-running agents

A founder panel on making agents worth it in production

Plenty of time to meet founders, CTOs and engineers building agents

Meet the Speakers

Zili Wang , Pretraining Researcher @ StepFun

Homer Wang , Head of Product @ TinyFish Enterprise infrastructure for AI to access the live web

Shengkun Ye , Co-founder & CEO @ Monid.ai OpenRouter for agent tools

Xiaomin Li , Founder @ MatrAIx Simulate before reality: evaluating AI products with simulated users

Richelle Ji , AI/DevEx Engineer @ Featherless The neutral layer for open models: 30,000+ open-source models through one API

Agenda

6:00 PM · Doors open, Dinner & Drinks

6:30 PM · Inside StepFun’s Models

7:00 PM · Founder panel: Do More, Spend Smarter

7:40 PM · Networking

9:00 PM · Wrap-up

Panel: Do More, Spend SmarterHow do we get better results without driving up costs?

Founders building across the agent stack discuss what it takes to make agents more capable and reliable, from choosing the right models and tools to evaluating real task outcomes. Across models, inference, tools, web, and evals, we'll look beyond token pricing to what really matters: the cost of getting a task done successfully.

Who should come

Founders, CTOs, and engineers building AI agents, developer tools, and AI-powered products. Whether you’re already shipping agents or getting ready for production, come meet others working through the same challenges.

​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:

→ API Platform · Model overview→ GitHub · Hugging Face · X

​About Tinyfish

TinyFish gives developers the infrastructure to build agents that reliably interact with the live web, navigating websites, executing multi-step workflows, and returning structured results. We offer search, fetch, and agent capabilities.