Turn your software team into a software factory. Used by 1000+ organizations.
San Francisco, CA
Joined May 2024
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Weave retweeted
In March 2025, YC said a quarter of its Winter 2025 startups had AI writing 95% of their code. The internet did not take it well.
@snowmaker, the YC partner who shared that number, remembers the reaction:
"There was a lot of kerfuffle on Twitter about like, what? They're doing what?"
"There was outrage on the internet of how dare the programmers have AI write the code for them?"
One startup in that same batch had a harder sell. @WorkWeave measures how much engineering work actually gets done, by people and by AI. Back then @cursor_ai was what everyone used, and @claudeai's Claude Code had only just come out, in February 2025.
Co-founders @adambcohen93 and @AndrewChurchiII were selling that in early 2025. One of them on how it went:
"Every single call we got on was pure skepticism. I don't believe that you can actually do this. So we had to actually prove it to them with their data."
"We would connect their data and show them, here's how it's actually working. Does this match your expectations?"
What happened next:
→ July 2025: a $4.2M seed round, with YC among the investors
→ July 2026: a $13.5M Series A led by @Standard_Cap, the firm former YC partner @daltonc co-founded
→ Its pitch now: end "tokenmaxxing", spending on token volume instead of real output
→ It also sells Weave Router, which picks a model for each coding task
From @ycombinator.
Weave retweeted
After A LOT of storyboarding and iterating, almost done editing the @WorkWeave x @Composio video for Season 3 of my "Agents at Work" Series:)
Weave retweeted
People are finally catching on 👀
Weave retweeted
Something massive just happened in software engineering.
For 8 straight months, every dollar spent on AI coding bought less code than the month before.
January: $2.80 per expert hour of output
August: $11.00
That's a 4x cost increase in 7 months.
Teams kept buying more tokens. Code wasn't keeping up.
And then we saw a huge shift in September...
For the first time all year, output grew FASTER than AI spend.
Cost per output hour: $11 → $9.39 (−15%)
Code per dollar: 0.09 → 0.106 (+18%)
The first wave of AI coding was brute force. Throw tokens at the problem, hope something ships.
What we may be seeing now is the efficiency era. Engineers are learning which tasks to hand off, how to prompt, and when not to use AI at all.
The engineers who figure this out first won't just be faster. They'll be dramatically cheaper.
One month isn't a trend. But we'll see what happens this month.
Weave retweeted
Q3: average engineering output per employee on Weave rose 78% from June to September. Average AI spend per employee rose 2.5×. In September, output growth outpaced spend for the first time this quarter. Read the report: weaveos.com/research/q3-2026…
Weave retweeted
On Saturday, I am co-hosting Paddles, Pints & Big Ideas alongside our friends at @WorkWeave, @rootlyhq, @tryreplicas, and @getcasco.
We are taking over SPIN San Francisco for an evening of table tennis, drinks, and good conversation with founders, CTOs, engineering leaders, and startup operators building the next wave of tech.
Channel your inner Marty Supreme on the table, grab a drink, and talk shop with other builders off the clock.
The RSVP link is in the comments below.
Weave retweeted
Had an insane September. Shipped 40% more per engineer MoM. Few notes on it:
1. Agent parallelization: our engineers ran multiple agents in parallel on multiple tasks, and we've learned to multiplex.
2. We immediately incorporated new models into our workflow thanks to the router.
3. More Slack agents and coding agents. Our engineers are running more of both day to day.
4. We built an internal code quality check (more to come on that soon).
Weave retweeted
We’re ready for you 🫡
Signups are filling fast, don’t wait.
RSVP: luma.com/a5ouvlt8
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
Weave retweeted
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
Weave retweeted
Introducing Weave Code Max:
We have hyper-optimized routing and inference so you can get $50+ in usage for just $10/month. You can use our tuned open-source models in Codex, OpenCode, Pi, or Claude Code.
The most coding $10 can buy.
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.
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
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 :)
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!
Weave retweeted
First they took Fable. Now all of Claude is down. Switch to weaverouter while we still have compute
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.
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.
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.
