Weave Raises $13.5M to Measure Engineering Output
Weave (weaveos.com) has raised a $13.5 million Series A led by Standard Capital, co-founder and CEO Adam Cohen announced with a viral video on X. Pioneer Fund, Y Combinator, Moonfire, Burst Capital and others also joined. Pioneer Fund, Moonfire and Burst Capital were all investors in the company's seed round last year.
Weave connects to the tools engineering teams already use and applies its own models to the work that flows through them, from the prompt an engineer writes to the code that reaches production. The company reports how much faster AI tooling is making a team, what that does to code quality, and what it costs. It then uses the same data to route tasks to the cheapest model that can handle them without giving up speed or quality.
That framing puts Weave in the middle of a spending question most engineering organizations have only recently had to answer. Budgets for AI coding tools have grown quickly, while the metrics leaders inherited, including commit counts, lines of code and the DORA and SPACE frameworks, were designed for human output. Weave's pitch is that an agent producing thousands of lines in seconds makes volume-based measurement useless, and that teams end up optimizing for tokens rather than progress. Cohen calls the pattern "tokenmaxxing."
"Lines of code are dead as a metric. Weave gives leaders one objective measure of real output, human and AI, so they can finally manage engineering like every other part of the business."
Adam Cohen, Co-Founder and CEO of WeaveThe company says its platform has measured more than 2 million human and AI code contributions across more than 20,000 engineers at over 500 companies, including Robinhood, Reducto and PostHog. Weave went through Y Combinator's Winter 2025 batch and announced a $4.2 million seed round in July 2025.
Cohen previously ran sales and operations organizations and built internal tooling to measure performance, a practice he has said is standard on revenue teams and largely absent in engineering. Churchill, the company's CTO, was employee #1 at Causal, which was acquired by Lucanet.
The company describes its longer-term goal as becoming the system of record for how engineers and AI affect business results.