In this video, Andrej Karpathy demonstrates how to build a Generatively Pretrained Transformer (GPT), following the paper "Attention is All You Need" and OpenAI's GPT-2 / GPT-3, and much more. Make sure that you watch at least parts of it!
Dex, an AI-powered recruiting platform for tech talent, raised $5.3 million in seed funding to expand its conversational AI agent that matches engineers with companies. The startup reports it has reached about $1.8M in ARR since it launched its paid services.
DeepSeek released DeepSeek-V4, an open-source 1.6-trillion-parameter model with a one-million-token context window that achieves near-frontier performance at roughly one-sixth the API cost of GPT-5.5 and Claude Opus 4.7.
ComfyUI raised $30M to scale its open-source platform that gives creators granular, node-based control over AI-generated media, addressing the limitations of prompt-based tools. ComfyUI now serves over 4M users and has become essential infrastructure for production studios and creative agencies.
Cohere and Germany's Aleph Alpha are merging to create a $20 billion transatlantic AI powerhouse focused on sovereign AI solutions, targeting the $600 billion market for organizations seeking independence from dominant US and Chinese AI providers.
OpenAI released GPT-5.5, a model that achieves state-of-the-art performance across coding, knowledge work, and scientific research while preserving efficiency. GPT-5.5 marks progress toward OpenAI's vision of an AI "super app" combining ChatGPT, Codex, and browser capabilities.
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