Side-by-side comparison of AI visibility scores, market position, and capabilities
Automatic multi-language SDK and API documentation generator from OpenAPI specs; $13M Bessemer-led Series A from YC W23 serving Cohere and ElevenLabs competing with Stainless for API developer experience.
Fern is a New York-based API tooling company that automatically generates multi-language SDKs and API documentation from OpenAPI specifications — enabling API companies to publish high-quality client libraries in TypeScript, Python, Java, Go, Ruby, and C# from a single source of truth, eliminating the significant engineering effort of manually building and maintaining SDKs for each programming language a developer audience uses. Founded in 2022 by Danny Sheridan and Deep Singhvi and a Y Combinator Winter 2023 graduate, Fern raised $13 million total including a $9 million Series A led by Bessemer Venture Partners with 30 employees.
$2.3B raised at $29.3B valuation; $2B+ ARR (Q1 2026); used by 50%+ of Fortune 500. Dominant commercial AI coding tool; built on VSCode fork with native agent mode. Competing with GitHub Copilot, Windsurf, and Lovable in the vibe-coding wave.
Cursor is an AI-powered code editor built on Visual Studio Code that integrates advanced language models to provide intelligent code completion, generation, debugging, and refactoring capabilities directly in the development workflow. The company serves software developers seeking to accelerate coding productivity through AI assistance while maintaining full control and understanding of their code. Cursor delivers value through contextual code suggestions that understand entire codebases, natural language commands to modify code, inline AI chat for explaining complex code, and a familiar VS Code interface that requires minimal learning curve for existing developers.
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.