# StepFun hosts Step 5 preview launch night with Together AI panelists

> Original title: Rain couldn't stop the builders.

- Source: StepFun
- Published: 2026-10-28T23:00:15.000Z
- Bad Influence: https://badinfluence.news/items/zv1ay0dzhyqu524mxq9e06b63
- Original: https://x.com/StepFun_ai/status/2115579424792076355

## Summary

StepFun held a Step 5 Preview Launch Night with Together AI, featuring a panel on long-horizon agents, tool-calling reliability, and inference costs. Panelists were Dan Fu of Together AI, Mar Hershenson of Pear VC, Saoud Rizwan of Cline, and Joey Wang of Harvey. The post gives no Step 5 specifications or release date.

## Post

Rain couldn't stop the builders.

Great conversations at our Step 5 Preview Launch Night with @togethercompute!

From long-horizon agents and tool-calling reliability to inference costs and what AI breakthroughs mean for the next wave of startups.

Huge thanks to our panelist Dan Fu (@realDanFu · @togethercompute), Mar Hershenson (@MarHershenson · @pearvc), Saoud Rizwan (@sdrzn · @cline), and Joey Wang (@harvey), and everyone who joined us!

More to come.

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHVwMQxWa0AAYU3M.jpg&mode=thumb&exp=1793491200&sig=788d19c09891c01d)