Cosine vs Extend
Side-by-side comparison of AI visibility scores, market position, and capabilities
YC W23 autonomous software engineering agent with 72% SWE-Lancer score; Genie model enabling parallel ticket execution competing with Devin and GitHub Copilot Workspace for AI coding automation.
About
Cosine is a San Francisco-based AI software engineering company building autonomous coding agents that enable development teams to work on multiple software tickets simultaneously — with the AI agent handling implementation tasks in parallel while engineers focus on architecture, code review, and product decisions. Founded by Yang Li, Alistair Pullen, and Sam Stenner and backed by Y Combinator (W23) with $3 million raised, Cosine's Genie model achieved 72% on SWE-Lancer and 30.08% on SWE-Bench, competitive benchmarks that position it among the highest-performing autonomous coding agents.
San Francisco AI document processing using LLMs for enterprise data extraction from invoices, contracts, and forms; $17M Innovation Endeavors and YC-backed at multi-million ARR serving Brex and Square cash-flow positive.
About
Extend is a San Francisco-based AI document processing platform using large language models to provide accurate data extraction and document understanding for enterprise workflows — turning unstructured documents (invoices, contracts, medical records, financial statements, onboarding forms) into structured data at the accuracy and cost level that manual processing and traditional OCR cannot match at scale. Backed with $17 million raised in combined seed and Series A funding led by Innovation Endeavors with Y Combinator, Homebrew, and angel investors including Adobe's CSO and Vercel's CEO, Extend reached multi-million dollar ARR and cash-flow positive status serving customers including Brex, Square, Checkr, and multiple Fortune 500 companies.
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