Engineering intelligence for the AI era (YC W25)

San Francisco, CA
You can now build custom dashboards in Weave :)
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Weave retweeted
We’re announcing our $13.5M Series A led by @Standard_Cap. AI has taken over engineering and companies are wasting millions. Weave gets you the most out of every dollar spent on tokens. Have fun watching a man attempt to conquer his fears in the video.
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Weave retweeted
We just closed Robinhood!! Our first Fortune 500 and first major financial institution. Absolute rollercoaster story from first meeting to close. Huge shoutout to the 3 people made it possible. When Robinhood approached us, we didn't have a self-hosted deployment, and for an org sitting on that much sensitive data. Andrew Churchill pulled a few all-nighters to build an on-prem version. Jerry Yu on daily calls navigating all the different stakeholders to make sure Weave could handle all of their needs. Jake from Robinhood who was willing to take a bet on us and work through any technical challenge that came our way! Now, Weave has become vital to a Fortune 500 company. It measures exactly what AI is doing in their codebase so they can answer: 1. What is the ROI we are getting from our token spend 2. How can we help our engineers get better at utilizing AI
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Weave retweeted
The other week we had Weave's first ever team offsite. 15 people in Jackson Hole gearing up for the next phase of growth. Monday: - Work day - Private chef cooking the most amazing dinner - Team jog around town (at elevation!) Tuesday: - Work day - Dinner at Million Dollar Cowboy - Poker tournament with Weave branded chips. @JunaidAckroyd took the win! Wednesday: - Session on what to expect as we scale up - White water rafting down Snake River Canyon (with a bit of swimming) - Rodeo and dinner in town Thursday: - Everyone presented their personal reflections to the company - @AndrewChurchiII vs. Munir in an ultimate frisbee showdown - Team reflections, where everyone shared work they're proud of and where they can improve Friday: - Back to SF Unbelievable week. Huge thanks to Kevin or taking the lead on organizing :)
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Weave retweeted
BREAKING: Matthew Evanusa has joined Weave as our founding Machine Learning Research Engineer! Matthew completed his Ph.D. at the University of Maryland, where he wrote his dissertation about memory augmented neural networks. When he's not shipping you can find him playing his favorite video game music with the local video game orchestra or hiking Mission Peak. Welcome onboard Matthew!
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Weave retweeted
First they took Fable. Now all of Claude is down. Switch to weaverouter while we still have compute
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Weave retweeted
This worked for our last hire so pushing again... hiring SWE & ML @WorkWeave - up to 300K base + equity. Comment, tag a friend or msg me and we'll get in touch asap.
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Weave retweeted
Copying the same approach for our GTM roles. Hiring for FDE, AE, GTME @WorkWeave. Current team under water with meetings so need some help asap. Uncapped comp. Comment/msg me.
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Hiring Software Engineers 150-250k base + equity!
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#1
Weave is launching the number 1 prompt router in the world. It enables you to get 70% more efficient use of your tokens. We analyzed millions of prompts and found that the vast majority don't need a frontier model. Weave Router fixes that. It analyzes your prompt and routes it to the highest quality model with the lowest cost (across open and closed source models). This all happens in your current workflow on Claude, Cursor or Codex so you don't have to change a thing. Early customers have seen an ~70% reduction in costs without any slowdowns. Source code available.
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Weave retweeted
Weave is launching the number 1 prompt router in the world. It enables you to get 70% more efficient use of your tokens. We analyzed millions of prompts and found that the vast majority don't need a frontier model. Weave Router fixes that. It analyzes your prompt and routes it to the highest quality model with the lowest cost (across open and closed source models). This all happens in your current workflow on Claude, Cursor or Codex so you don't have to change a thing. Early customers have seen an ~70% reduction in costs without any slowdowns. Source code available.
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We're accross engineering, GTM, and marketing! 150-250k base + equity. Comment below why you're formidable and we'll reach out!
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Weave retweeted
99.9% of founders need to go to Claude Code and type "Install GStack"
.@garrytan beating 99.9% of founders right now
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Weave retweeted
.@garrytan beating 99.9% of founders right now
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We're hiring engineers! 150-250k base + equity. Comment below why you're a formidable engineer and we'll reach out!
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Yesterday Augment Code released their API analytics for their customers. Today we are excited to announce Weave's integrations with it! You can now sync all of your AI usage data and have it correlated with our code output model to answer to question like:
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"How much faster is Augment making my engineers?" "Who is using Augment best on the team?" "How does Augment compare to Cursor, and Claude?" Check it out here: app.workweave.ai/data
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January sets the tone for the entire year, and these five teams proved they're ready to dominate 2026: Hamming AI, Spott, ShiftRx, Distill, and Ergo (YC W25) led the pack on Weave this month.
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Their engineering teams are shipping faster, leveraging AI more effectively, and setting new benchmarks for productivity. In February, we're going behind the scenes to interview some of the top engineers on Weave to break down exactly how they work.
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