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Introducing Gemini 3.8 Live and 3.8 Live Extended Thinking
Google DeepMind
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Google DeepMind released Gemini 3.8 Live with an extended-thinking variant for real-time multimodal interaction.
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DeepSeek debuts DeepSeek-V4.1-Flash, its smallest model built on a new Causal Encoder-Decoder architecture, with 552B backbone parameters and 1M-token context (Reuters)
Techmeme
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DeepSeek released V4.1-Flash with a new Causal Encoder-Decoder architecture, 552B backbone parameters, and 1M-token context.
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On the Navier–Stokes Millennium Prize Problem
Simon Willison
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OpenAI says an unreleased model produced a solution to the Navier-Stokes Millennium Prize Problem, a major AI capability claim.
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Introducing ChatGPT Images 2.5
Simon Willison
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OpenAI released ChatGPT Images 2.5 with faster generation, stronger multi-turn instruction following, and two new image API model IDs.
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OpenAI says an internal model "significantly more capable than GPT-6 Astra" solved the Navier-Stokes problem using 10K concurrent agents working for 88 hours (Madison Mills/Axios)
Techmeme
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OpenAI says a post-GPT-6 internal model coordinated 10,000 agents for 88 hours to solve Navier-Stokes.
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What OpenAI’s latest controversy tells us about the future of math
MIT Technology Review AI
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OpenAI says its agents solved a Millennium Prize Problem, a major mathematical capability claim now facing scrutiny.
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llm 0.35
Simon Willison
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OpenAI's GPT-6 Astra is newly available through the llm CLI, signaling a notable model release.
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ICYMI: OpenAI's Astra crosses Critical cybersecurity threshold
TestingCatalog
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OpenAI says Astra is its first model to hit a Critical cybersecurity capability threshold, with access limited to alpha testers.
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Anthropic says Claude worked "largely autonomously" over 11 days to formalize the proof of Fermat's Last Theorem in the Lean programming language (Anthropic)
Techmeme
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Anthropic reports Claude autonomously completed a Lean formalization of Fermat's Last Theorem, demonstrating long-horizon theorem-proving capability.
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GPT‑6 Astra
Simon Willison
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OpenAI’s GPT-6 Astra is rolling out in ChatGPT and API access with benchmark claims above Claude Fable.
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llm-anthropic 0.28
Simon Willison
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Anthropic's Claude Fable 5.1 appears in llm-anthropic with reasoning trace support exposed by default.
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Gemini 3.8 Flash and 3.8 Flash Cyber
HN · Frontpage AI
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Google released Gemini 3.8 Flash variants, including a cyber-focused model, expanding its fast model lineup for specialized security tasks.
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Anthropic unveils Claude Fable 5.1, which is generally available, and Mythos 5.1, for trusted partners and with cybersecurity and life sciences safeguards (Anthropic)
Techmeme
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Anthropic released Claude Fable 5.1 broadly and introduced Mythos 5.1 for trusted partners with domain-specific safeguards.
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[AINews] Claude Fable/Mythos 5.1: new SOTA model, 75% cache price cut but 70% more output tokens
Latent Space
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Anthropic launched Claude Fable/Mythos 5.1 with reported SOTA performance, cheaper cache pricing, and higher output token costs.
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Path to Astra: critical capabilities and frontier safeguards
OpenAI Blog
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OpenAI says Astra is its first model to cross its Critical cyber-capability threshold, prompting stricter release controls.
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Fei-Fei Li's World Labs unveils Atlas, a multimodal world model that generates image/video frames with pixel-perfect camera control and reconstructs them in 3D (World Labs)
Techmeme
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World Labs unveiled Atlas, a world model for controllable image and video generation with 3D reconstruction.
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Open AI’s Astra model is on the way—and very good at breaking into computer systems
TechCrunch AI
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OpenAI previewed Astra, a cyber-capable frontier model whose release requires heightened safeguards for offensive security risks.
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Introducing Hy4 Preview
Simon Willison
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Tencent released Hy4 Preview, a 770B-parameter open-weight text LLM with 49B active parameters and a 1M-token context window.
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GLM-5.3 is now open-weight
HN · Hugging Face Models
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GLM-5.3 was released as open weights, giving builders access to a notable new Chinese frontier-style model.
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Google launches Gemini Omni 1.1 Flash, which it says delivers studio-quality video production, including the ability to extend a scene, 4K upscaling, and more (Google)
Techmeme
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Google released Gemini Omni 1.1 Flash with video extension, 4K upscaling, and more controllable studio-grade generation capabilities.
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Alibaba releases Qwen3.8-Flash, an open-weight, 125B-parameter model built on its next-gen Qwen 4 architecture, saying it rivals Opus 4.6 and V4-Flash (Luz Ding/Bloomberg)
Techmeme
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Alibaba released an open-weight 125B Qwen model on its next-generation architecture with claimed frontier-adjacent performance.