Nia by @NozomioAI is an MCP that gives coding agents 10x more developer context. It indexes external repos and docs, so any coding agent always has the right context. Congrats on the launch, Arlan! ycombinator.com/launches/NyY-n…

Very exciting seeing Design Arena start to take off. LLMs clearly struggle with designing aesthetically-designed content, and this team is going to benchmark them all. Congrats on the launch!

Three new arenas launching today from the team behind Design Arena. See which vibe coder, audio model, and diffusion model you like best. 🚀

Super excited about this one! AgentMail (YC S25) is great example of the type of company that only makes sense in 2025: a brand new email client purpose built for AI agents instead of humans. Try it out — they have an easy-to-use playground to get started.

You can train a SOTA OSS model for less than YC’s seed check. In fact for about half the compute credits every YC company gets. Sounds like it’s time to see some startups compete.

Really excited to see Lotas launch. Data scientists and statisticians need the same AI-enabled IDE support that software engineers have, and I'm excited to see this team bring it to them.

yess come join this hackathon on AI coding agents this saturday at YC lu.ma/hzwlapu0 if you win, you'll get a guaranteed YC interview

Another great example of a very 2025 launch -- simulate your users with AI and find bugs in your product. This team has been a lot of fun to work with, and their product has some very exciting traction.

T - ((5+5+5) - 5/5) + 5 min for us to set it up on Design Arena 👀

Waymo for excavators!

GPT-5 is the only model from OpenAI to break the top 15 It's now first place on Design Arena and is the first model ever to beat Opus 4.1 and Opus 4 in both win rate and elo okay Sam Altman keep cooking

This team is shipping impressively fast

So proud of Lucy Nam, MD!! Go check out her new book! Pretty surreal to see it come together.

A GLP-1 goldmine: shelved incretins with ≥7 years of IP runway in China, Japan, and S Korea. We just found several oral GLP-1s that fit this profile. We’re giving one away (maybe a billion-dollar mistake). [email protected] if you are interested to see what else we can do.

fitbit for cows

DeepAware (DeepAware AI) makes data centers more secure and efficient with AI and robotics that monitor for threats, prevent downtime, and cut up to 10-30% energy waste. ycombinator.com/launches/OBl-d… Congrats on the launch, Jerry Huang and Stela!