Cognee vs OpenAI
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised €7.5M seed (Feb 2026) led by Pebblebed with OpenAI and FAIR founders as backers. Open-source knowledge graph + vector memory for AI agents. Claude SDK integration. Prevents hallucinations via persistent structured memory.
About
Cognee is an open-source knowledge graph and vector memory engine designed specifically for AI agents — providing persistent, structured memory that prevents hallucinations by grounding agent responses in verified organizational knowledge rather than parametric model weights. The company raised €7.5 million ($8.2 million) in seed financing in February 2026, led by Pebblebed and backed by founders from OpenAI and Facebook AI Research (FAIR). Cognee has integrated with the Claude SDK, making it directly accessible to teams building on Anthropic's models.
GPT-5 and o3 model family at $25B+ ARR; $840B post-money valuation (Feb 2026 round); ChatGPT 1B+ users; largest private fundraise in history ($110B). Competing with Anthropic Claude 4, Google Gemini 3, Meta Llama 4.
About
OpenAI is a San Francisco-based artificial intelligence company developing and deploying large-scale AI systems — including GPT-4o, o1 reasoning models, DALL-E 3 image generation, Sora video generation, and the Whisper speech recognition model — through the ChatGPT consumer product and OpenAI API for developers and enterprise customers. Founded in 2015 as a nonprofit by Sam Altman, Elon Musk, Greg Brockman, and others and restructured into a capped-profit company, OpenAI raised $157 billion in total funding including a $6.6 billion round in October 2024 at a $157 billion valuation and a $40 billion round from SoftBank in 2025, generating $3.7 billion in annualized revenue in 2024 with 400 million weekly ChatGPT users.
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