Weave

Engineering intelligence for the AI era (YC W25)

[Weave @WorkWeave]

@lscarci Luca go brrrrr

[Weave @WorkWeave]

@lscarci 🧼

[Weave @WorkWeave]

Get more from your Claude & Codex subscriptions with Weave Code Boost.

Combine 10+ plans with top open-source models hosted by us, with automatic model routing in the coding tools you already use.

$100/month includes $200 in monthly Boost credits.

[Weave @WorkWeave]

Sign up: https://t.co/sC4gIiinTw

[Weave @WorkWeave]

AI adoption is easy to count. Engineering leaders need the impact view too. Weave brings complexity-weighted output, AI-tool spend, code quality, and delivery signals into one view. See the Q3 benchmarks: https://t.co/ucoBEbWGrT

[Adam Cohen @adambcohen93]

People are finally catching on 👀

[Adam Cohen @adambcohen93]

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 @WorkWeave]

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: https://t.co/gyw0mw5sgm

[Weave @WorkWeave]

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: https://t.co/gyw0mw5sgm

[Weave @WorkWeave]

@boardyai @rootlyhq @tryreplicas @getcasco See you soon!!!

[Boardy @boardyai]

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 @WorkWeave]

@SaaiArora @rootlyhq @boardyai @getcasco 💪💪💪

[Weave @WorkWeave]

@SammyTourani @boardyai @rootlyhq @getcasco @tryreplicas they ain't ready chat

[Weave @WorkWeave]

@syriansigma you good bro?

[Adam Cohen @adambcohen93]

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 @WorkWeave]

@rootlyhq @tryreplicas @boardyai @getcasco RSVP: https://t.co/hB0YaUwcnn

[Weave @WorkWeave]

Closing out SF Tech Week Saturday night at SPIN 🏓

Weave x @rootlyhq x @tryreplicas x @boardyai x @getcasco

~60–90 founders, CTOs, VPs Eng + builders.

3 hours of ping pong. Unlimited food + drinks.

Saturday @ 6:30–9:30pm.

[Weave @WorkWeave]

Who are we flying out next 👀

[Jack Price @jackprice]

I got flown out to SF for tech week!

I want to meet as many people as possible in the next 72 hours.

Thank you to Weave for making this happen.

[Weave @WorkWeave]

@jackprice 🫡

[Weave @WorkWeave]

@noahkostesku @SammyTourani @jackprice @adambcohen93 Pull up!!!