San Francisco, CA – Cognition AI, the developer of the autonomous AI software engineer Devin, has announced a significant surge in its annualized revenue run-rate (ARR), reaching $492 million by late May 2026. This impressive growth comes on the heels of its acquisition of AI coding startup Windsurf in July 2025 and a recent funding round of over $1 billion, which valued the company at approximately $26 billion.
Jeff Wang, a key figure associated with the combined entities, highlighted the rapid scaling, stating in a recent social media post, > "Before @windsurf was acquired, it took 2.5 years of grinding, creativity, and luck, to get us closer and closer to $100M… But @cognition just added more revenue than where @windsurf was, all in the last month." This underscores the accelerated growth post-acquisition.
The acquisition of Windsurf, which had an estimated ARR of $73 million to $100 million prior to the deal, significantly expanded Cognition's product suite and customer base. Windsurf's enterprise focus and AI-native integrated development environment (IDE) complemented Devin's autonomous coding capabilities, attracting major clients such as Goldman Sachs, Mercedes-Benz, NASA, and Santander. The integration of Windsurf's technology, including Codemaps, has enhanced Devin's ability to analyze large codebases and improve task performance.
Cognition's rapid expansion is further evidenced by its recent financial milestones. In September 2025, the company closed a $400 million funding round led by Founders Fund, valuing it at $10.2 billion. The subsequent $1 billion raise in May 2026, led by Lux Capital and General Catalyst, more than doubled its valuation in under eight months, reflecting strong investor confidence in the autonomous coding sector.
The company's business model, which combines Devin's self-serve adoption among individual developers with Windsurf's larger enterprise contracts, has proven effective. This dual approach has allowed Cognition to capture a broad market segment, from individual developers seeking productivity improvements to large organizations aiming to accelerate development timelines and manage engineering talent shortages. The market for AI coding tools is experiencing intense competition, with Cognition carving out a distinct niche for autonomous, end-to-end task execution.
