Sammy Tourani

Weave (W25) helps engineering teams understand whether their AI coding tools are actually making them more productive. Its models measure the work humans and agents produce and compare that output with AI spending. The company recently raised a $13.5M Series A led by Standard Capital and launched Weave Router, which selects models for different coding tasks. In this fireside, @WorkWeave co-founders @adambcohen93 and @AndrewChurchiII join YC's @snowmaker to share how the company evolved alongside the rapid rise of AI coding, from measuring the impact of tools like Cursor to helping teams build software factories that can work autonomously. They explain how the best engineering teams are learning to measure the real output of their agents, spread the habits of their strongest AI users, and optimize for a future where much more software is written without a human at the keyboard. 00:00 — Optimizing AI Coding With Weave 04:02 — Getting More From Your AI Budget 08:39 — Measuring Work Beyond Lines of Code 12:30 — From AI Adoption to Optimization 16:47 — Measuring AI ROI and Coaching Engineers 20:16 — Building Software Factories 25:38 — The Future of Model Routing

Today we’re launching Voice 2.0 in Chatbase. Voice agents used to make you choose: - Sound human with a voice-to-voice model - Or be smart with STT → LLM → TTS Now you get both. A voice model listens and talks, so it sounds like a real person and replies fast, and delegates the thinking to a frontier model like Opus 5.5, so it follows your Procedures, calls Actions reliably and stays inside your Guardrails. Try it at chatbase.co/voice

Microsoft just offered buyouts to 60,000 employees while doubling down on AI. So is AI actually replacing engineers? @WorkWeave measures what engineering teams ship across 1,000+ companies (including teams like @RobinhoodApp and @posthog). I went inside their San Francisco office to find out what the data says. TIMESTAMPS🎥 0:00 People spending $100K a month on AI 0:22 Is AI actually making engineers more productive? 0:53 Office tour with Sammy & Coco 2:03 Meet Adam Cohen, co-founder & CEO 2:19 The story behind Weave's mascot 2:54 Is AI working? 20x vs 2x 3:49 What Weave actually does 4:24 What's a software factory? 5:43 Is code quality going down? 6:44 What I know so far 6:57 Tokenmaxxing explained 7:47 How engineers game AI metrics 8:37 Team lunch 9:59 Meet Brennan, employee #1 10:43 What a GTM engineer actually does 11:22 GrowthOS: a whole growth team in one tool 11:51 The 8-foot token jar 13:04 How Composio powers GrowthOS 13:38 Why doesn't every company just plug in Weave? 14:05 Sanjog: what companies get wrong in month one 14:41 When you need a forward deployed engineer 15:25 What engineering leaders actually want from AI 16:00 Why engineers should see their own data 17:28 What I learned Thank you to @adambcohen93, @Brennan_Lup, @SammyTourani and rest of the team for having me:)

I jumped out of a plane for our Series A announcement. For the celebration, we’re staying on the ground. Thursday: run with us. Friday: party at the new office. DM me, and I’ll add you to the list for Friday. Luma: luma.com/a5ouvlt8

SF Tech Week is here. Come hang with us! Thursday, 5–6pm: run with our founders & engineers. Merch, refreshments + Weave Code Max/Boost giveaways. Friday, 7–10pm: we’re opening our new SF office and celebrating our $13.5M Series A. Food, drinks, demos, office tours + the best party of Tech Week. RSVP ↓

I’m helping @SammyTourani shop for new clothes because he lost all his clothes. We’re back at Ross Dress for Less. Stay tuned for the outfits he gets.

Visa approved. Moved to SF. Joined @WorkWeave (YC W25) full-time. Building across engineering, GTM, and whatever needs to get done. We’re growing fast & hiring. Come build with us :)

to the person that canceled my flight with my confirmation number… thank you. Anyways… I’m moving to SF 😭

Update: Paid another $132 to get to SF. Someone stole my carry-on, so now I need to file a police report. Currently at the airport with no clothes and a laptop 💀

Update: I literally had my boarding pass to SFO in my hand and this hacker still managed to rebook me to Chicago for Valentine’s Day 2027💀 I did not board the plane. Booking another flight.

to the person that canceled my flight with my confirmation number… thank you. Anyways… I’m moving to SF 😭