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Jeff Dean, the Google engineer behind MapReduce, TensorFlow, and a chunk of the infrastructure modern AI runs on, is leaving after 27 years. He's teaming up with three other Google veterans to launch Discovery Loop, a startup built to automate scientific and engineering research. |
The reshuffle goes deeper than Dean walking out the door - Demis Hassabis is stepping back from DeepMind's CEO seat to chair the lab and take on a broader chief scientist role at Alphabet, while Koray Kavukcuoglu takes the wheel on Gemini. Can Google's AI division keep shipping at the same pace once four of its most-cited researchers are running their own shop? |
Today in AI: |
Google's Jeff Dean exits to launch Discovery Loop ChatGPT gives free users unlimited text chats Meta debuts Muse Code, its first coding agent |
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What's new? Jeff Dean, Google's longtime chief scientist, is departing the company to co-found Discovery Loop, an independent public benefit corporation aimed at automating scientific and engineering research. |
What matters? |
Dean is joined by fellow Google veterans Sanjay Ghemawat, Quoc Le, and Oriol Vinyals, the team behind foundational technologies like TensorFlow and sequence-to-sequence learning. Discovery Loop plans to build AI systems that propose, run, and evaluate experiments in parallel, aiming to compress research timelines that normally take human teams months. Google will act as a founding investor and cloud partner rather than a competitor, while Demis Hassabis moves from DeepMind CEO to chair and Alphabet chief scientist. |
Why it matters? |
Losing four of the most-cited researchers in AI is a real loss of institutional memory for Google, even with a friendly investment tie. If Discovery Loop delivers on faster automated research, it could reshape how quickly AI labs turn ideas into working systems. |
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GUIDE |
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What's new? OpenAI rolled out unlimited text chats for ChatGPT's free and Go tiers, powered by a new default model, GPT-5.6 Luna, alongside an upgraded GPT-5.6 Sol for paying subscribers. |
What matters? |
Free and Go users get unlimited text chats plus a new Think button for higher-effort reasoning, rolling out this week with full access arriving next week. OpenAI says factual errors dropped 62% for Luna and 68% for Sol compared to the outgoing GPT-5.5 Instant model, according to internal evaluations reported by TechCrunch. Plus and Pro subscribers get an adjustable effort slider instead of switching between separate "Instant" and "Thinking" modes, letting the same model decide how much to reason per message. |
Why it matters? |
Free-tier limits have long pushed casual users toward paid plans or rival chatbots - removing the text cap closes that gap and puts on-demand reasoning in front of anyone, no subscription required. That's a meaningful upgrade for anyone using ChatGPT as a daily tool rather than an occasional novelty. |
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What's new? Meta introduced Muse Code, a terminal-based coding agent powered by its new Muse Spark 1.2 model, marking the company's first real push into autonomous software development tools. |
What matters? |
Async background agents in Muse Code persist through a session instead of spawning fresh sub-agents per task, cutting latency on multi-step coding problems. The tool ships with three built-in commands - /plan for approval-gated planning, /grill for stress-testing a plan, and /goal for tracking task completion. In one test, Muse Code made 1,000+ tool calls over 24 hours to iteratively optimize a GPU kernel for NVIDIA Hopper hardware, refining its approach with each pass. |
Why it matters? |
Meta has spent the past year chasing OpenAI and Anthropic on chat and image models - a dedicated coding agent signals it wants a piece of the developer-tool market too. Whether Muse Code can hold its own against rivals will depend on how it handles messy, real-world repositories rather than benchmark tasks. |
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Everything else in AI |
Alibaba unveiled Wan3.0 in public beta, an all-in-one video model that generates up to 30-second clips from text, images, audio, or video references while keeping characters consistent. |
Hark launched Handoff, its first product since raising $700 million in May, an internet-use agent built to handle routine tasks like food orders and shopping. |
HubSpot put together a free 12-prompt pack for go-to-market teams using Perplexity Computer, covering competitive intel, messaging tests, and cold outreach. |
GodOfPrompt bundles prompt libraries, courses, and templates into one pack for creators looking to turn AI skills into a side income. |
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