Cosine is a fully agentic SWE that allows you to instantly work on every single ticket at once, asynchronously.
Cosine is a Y Combinator company in the Winter 2023 batch. Its directory entry describes it as: Fully Agentic SWE. The founders listed are Alistair Pullen (Founder), Yang Li (Founder) (Y Combinator directory entry, December 12, 2022).
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Cosine trains AI models and specialised coding agents for organisations that need frontier capability within secure environments.
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Alistair Pullen
Founder
Full-stack Software Engineer with 15 years experience with deep applied knowledge of LLMs and Embeddings. Currently building an AI dev tool. Experienced an exit with Fancy (YC S20, acq. GoPuff).
Yang Li
Founder
1 IPO, 2 Acquisitions, 3 Unicorns. Ex VP of Europe for Digital Currency Group's consumer arm, Luno. Launched Ziglu (acquired by Robinhood) and scaled to 100,000 customers in the first year. Previously Commercial Director for Mobike (acquired by Meituan) growing it to 220M MAUs until the $55B IPO. Yang is one of the 2021 Forbes 30 under 30 cohort.
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Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
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What the Full Report on Cosine covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
12 cited sources found
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