As of: 2026-10-10 14:45 CEST. Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz. Canonical page: https://postcutoff.com/news/major/5/ # Major AI news, newest first, page 5 The 326 major or historic events of 1,105 in the log, newest first. Page 5 of 7, 50 events per page, grouped by the day each event happened. ## Thursday 23 April 2026 - [OpenAI releases GPT-5.5 (codename Spud)](https://postcutoff.com/e/2026-04-23-gpt-5-5/) (Model releases; OpenAI; major). GPT-5.5 was OpenAI's flagship for most of Q2 2026 and the base for its cyber-defense strategy; its Instant variant brought the generation to free users. Source: https://openai.com/index/introducing-gpt-5-5/ ## Thursday 16 April 2026 - [Physical Intelligence's π0.7 shows compositional generalization to untrained robot tasks](https://postcutoff.com/e/2026-04-16-physical-intelligence-pi-0-7/) (Robotics; Physical Intelligence; major). Emergent, promptable generalization is what would let general-purpose robots be deployed without per-task data collection. Source: https://www.pi.website/blog/pi07 ## Wednesday 8 April 2026 - [Meta Superintelligence Labs debuts Muse Spark, its first model](https://postcutoff.com/e/2026-04-08-meta-muse-spark/) (Model releases; Meta; major). On 2026-04-08 Meta Superintelligence Labs (led by Alexandr Wang) released Muse Spark (code-named Avocado), the first model of the new Muse series and the result of a nine-month ground-up rebuild of Meta's AI stack. Source: https://about.fb.com/news/2026/04/introducing-muse-spark-meta-superintelligence-labs/ ## Tuesday 7 April 2026 - [Anthropic reveals Claude Mythos Preview, withholds it over cyber risk and launches Project Glasswing](https://postcutoff.com/e/2026-04-07-claude-mythos-preview-project-glasswing/) (Model releases; Anthropic; historic). Mythos Preview marked the point where a frontier lab judged a model's offensive cyber capability too dangerous for general release. Source: https://www.anthropic.com/glasswing ## Thursday 2 April 2026 - [Generalist GEN-1 claims 99% success on simple robot tasks, trained on 500k+ hours of human wearable data](https://postcutoff.com/e/2026-04-02-generalist-gen-1/) (Robotics; Generalist AI; major). Source: https://generalistai.com/blog/gen-1 ## Tuesday 31 March 2026 - [OpenAI closes record $122B funding round at $852B valuation](https://postcutoff.com/e/2026-03-31-openai-122b-funding-round/) (Business; OpenAI, Amazon, Nvidia, SoftBank; major). The round funds OpenAI's massive compute build-out (Stargate) and anchors expectations of an eventual IPO; the AGI-contingent tranche makes "AGI" a contractual financial trigger. Source: https://group.softbank/en/news/press/20260227 ## Wednesday 25 March 2026 - [ARC Prize launches ARC-AGI-3, an interactive game benchmark where frontier AI scored under 1%](https://postcutoff.com/e/2026-03-25-arc-agi-3-launch/) (Benchmarks; ARC Prize Foundation; major). It was designed as the hardest-to-game AGI benchmark of 2026; within six months it was largely cracked (see GPT-6 Astra entry), illustrating the pace of agentic progress. Source: https://arcprize.org/arc-agi/3 ## Monday 16 March 2026 - [NVIDIA GTC 2026: Vera Rubin platform, Groq 3 LPX, Feynman preview and $1T demand outlook](https://postcutoff.com/e/2026-03-16-nvidia-gtc-2026-vera-rubin-feynman/) (Chips & compute; NVIDIA; major). It set the hardware roadmap that most frontier labs' 2026-2028 compute plans depend on, and signaled NVIDIA's push into inference-specialized silicon and agent software. Source: https://blogs.nvidia.com/blog/gtc-2026-news/ ## Thursday 5 March 2026 - [OpenAI releases GPT-5.4 with native computer use](https://postcutoff.com/e/2026-03-05-gpt-5-4/) (Model releases; OpenAI; major). First OpenAI mainline model to beat the human baseline on OSWorld-Verified, marking computer-use agents as a mainstream capability. Source: https://openai.com/index/introducing-gpt-5-4/ ## March 2026, day not recorded - [Math Inc's Gauss formalises Viazovska's sphere-packing proofs in dimensions 8 and 24, fixing errors in the originals](https://postcutoff.com/e/2026-03-01-gauss-sphere-packing-formalization/) (Science & math; Math Inc; major). AI autoformalization reached Fields-Medal-level proofs, strengthening the case that formal verification can keep up with the flood of AI-generated mathematics. Source: https://arxiv.org/abs/2604.23468 ## Saturday 28 February 2026 - [Claude Opus 4.6 solves an open Hamiltonian-cycle problem, Donald Knuth reports](https://postcutoff.com/e/2026-02-28-knuth-claudes-cycles/) (Science & math; Anthropic, Stanford University; major). Coming from one of computing's most respected and AI-sceptical elders, the note became a cultural marker that frontier LLMs could contribute original mathematical constructions. Source: https://www-cs-faculty.stanford.edu/~knuth/papers/claude-cycles.pdf ## Friday 27 February 2026 - [Pentagon designates Anthropic a "supply chain risk" after it refuses surveillance and autonomous-weapons uses](https://postcutoff.com/e/2026-02-27-pentagon-designates-anthropic-supply-chain-risk/) (Policy & safety; Anthropic; major). This was the most serious clash yet between a US frontier lab's safety or usage policies and the federal government. Source: https://www.anthropic.com/news/statement-department-of-war ## Thursday 19 February 2026 - [Google releases Gemini 3.1 Pro, scoring 77.1% on ARC-AGI-2](https://postcutoff.com/e/2026-02-19-gemini-3-1-pro/) (Model releases; Google DeepMind, Google; major). The ARC-AGI-2 jump was among the largest single-release gains on that benchmark. Source: https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-1-pro/ ## Wednesday 11 February 2026 - [DeepMind's Aletheia agent and Gemini Deep Think report autonomous Erdős solutions and new physics and CS results](https://postcutoff.com/e/2026-02-11-deepmind-aletheia-deep-think-science/) (Science & math; Google DeepMind; major). Google's answer to OpenAI's maths push showed that several labs could now produce publishable research-level results, although many were on problems nobody had seriously attacked. Source: https://deepmind.google/blog/accelerating-mathematical-and-scientific-discovery-with-gemini-deep-think/ ## Monday 2 February 2026 - [SpaceX absorbs xAI in a $1.25 trillion merger](https://postcutoff.com/e/2026-02-02-spacex-acquires-xai/) (Business; SpaceX, xAI; major). It fused a frontier AI lab with the world's dominant launch provider and a large satellite network, giving xAI access to public-market capital (via the June 2026 SpaceX IPO) and a unique compute-in-space thesis. Source: https://www.bloomberg.com/news/articles/2026-02-02/elon-musk-s-spacex-said-to-combine-with-xai-ahead-of-mega-ipo ## Tuesday 27 January 2026 - [Figure Helix 02: one neural network controls a humanoid's whole body from pixels](https://postcutoff.com/e/2026-01-27-figure-helix-02/) (Robotics; Figure AI; major). It was the first public case of a learned humanoid policy doing minutes-long household tasks end to end from pixels. Source: https://www.figure.ai/news/helix-02 ## Monday 12 January 2026 - [Anthropic launches Claude Cowork](https://postcutoff.com/e/2026-01-12-claude-cowork/) (Products; Anthropic; major). It took Claude Code's agentic pattern to mainstream knowledge work, and it became one of Anthropic's biggest product lines of 2026. Source: https://simonwillison.net/2026/Jan/12/claude-cowork/ ## Thursday 8 January 2026 - [Zhipu AI and MiniMax become first LLM labs to go public (Hong Kong)](https://postcutoff.com/e/2026-01-08-zhipu-minimax-hong-kong-ipos/) (Business; Zhipu AI, MiniMax; major). Public listings give Chinese labs a capital source independent of US venture money and made them the first pure-play LLM developers with public market valuations. Source: https://www.cnbc.com/2026/01/09/minimax-hong-kong-ipo-ai-tigers-zhipu.html ## Tuesday 6 January 2026 - [Erdős problem #728 solved near-autonomously by GPT-5.2 Pro and Harmonic's Aristotle, with a Lean proof](https://postcutoff.com/e/2026-01-06-erdos-728-gpt-5-2-aristotle/) (Science & math; OpenAI, Harmonic; major). It showed the combination of informal LLM reasoning with formal verification as a practical, trustworthy workflow for research maths that non-experts could run. Source: https://arxiv.org/abs/2601.07421 ## Monday 5 January 2026 - [Boston Dynamics unveils production electric Atlas at CES](https://postcutoff.com/e/2026-01-05-boston-dynamics-atlas-production/) (Robotics; Boston Dynamics, Hyundai Motor Group, Google DeepMind; major). A mass-production humanoid from the best-known legged-robotics company, with a captive automotive customer planning tens of thousands of units, marks the industrialization of humanoids. Source: https://bostondynamics.com/blog/boston-dynamics-unveils-new-atlas-robot-to-revolutionize-industry/ ## Monday 8 December 2025 - [Genuine AI-assisted solutions to Erdős problems begin](https://postcutoff.com/e/2025-12-08-ai-erdos-problems-wave-late-2025/) (Science & math; Harmonic, Google DeepMind, OpenAI; major). Erdős problems became the first large, public, verifiable scoreboard for AI in research mathematics, and set the stage for 2026's much larger results. Source: https://arxiv.org/abs/2510.19804 ## Thursday 27 November 2025 - [DeepSeekMath-V2: open-weights self-verifying prover reaches IMO 2025 gold level and 118/120 on Putnam 2024](https://postcutoff.com/e/2025-11-27-deepseekmath-v2/) (Open source; DeepSeek; major). It made olympiad-level natural-language proof generation reproducible outside the big US labs. Source: https://arxiv.org/abs/2511.22570 ## Monday 24 November 2025 - [Anthropic releases Claude Opus 4.5](https://postcutoff.com/e/2025-11-24-claude-opus-4-5/) (Model releases; Anthropic; major). Made frontier-level agentic coding cheaper and helped drive rapid adoption of long-running coding agents at the end of 2025. Source: https://www.anthropic.com/news/claude-opus-4-5 ## Tuesday 18 November 2025 - [Google launches Gemini 3](https://postcutoff.com/e/2025-11-18-gemini-3/) (Model releases; Google DeepMind; historic). Widely seen as putting Google at the top of the frontier; press reported OpenAI declared an internal 'code red' in response. Source: https://blog.google/products/gemini/gemini-3/ ## Wednesday 29 October 2025 - [Universal Music settles with Udio and licenses a new AI music platform](https://postcutoff.com/e/2025-10-29-umg-udio-settlement-licensed-platform/) (Business; Universal Music Group, Udio; major). Source: https://www.prnewswire.com/news-releases/universal-music-group-and-udio-announce-udios-first-strategic-agreements-for-new-licensed-ai-music-creation-platform-302599129.html ## Tuesday 30 September 2025 - [OpenAI launches Sora 2 and the Sora social app](https://postcutoff.com/e/2025-09-30-sora-2/) (Media generation; OpenAI; major). Turned AI video into a mass social medium and intensified debates about deepfakes, likeness rights and copyright. Source: https://openai.com/index/sora-2/ ## Monday 29 September 2025 - [Anthropic releases Claude Sonnet 4.5](https://postcutoff.com/e/2025-09-29-claude-sonnet-4-5/) (Model releases; Anthropic; major). Pushed the length of tasks AI agents can reliably do and made agent-building infrastructure broadly available. Source: https://www.anthropic.com/news/claude-sonnet-4-5 ## Monday 22 September 2025 - [NVIDIA and OpenAI announce 10-gigawatt partnership with up to $100B investment](https://postcutoff.com/e/2025-09-22-nvidia-openai-partnership/) (Chips & compute; NVIDIA, OpenAI; major). Illustrated the circular financing and energy-scale ambitions of the 2025 AI build-out, fueling 'AI bubble' debates. Source: https://openai.com/index/openai-nvidia-systems-partnership/ ## Wednesday 17 September 2025 - [AI reaches gold-medal level at the ICPC World Finals](https://postcutoff.com/e/2025-09-17-icpc-gold-ai/) (Benchmarks; OpenAI, Google DeepMind; major). Following IMO gold, confirmed elite-human-level algorithmic problem solving by general-purpose reasoning models. Source: https://deepmind.google/blog/gemini-achieves-gold-medal-level-at-the-international-collegiate-programming-contest-world-finals/ ## Friday 12 September 2025 - [First AI-generated complete genomes](https://postcutoff.com/e/2025-09-12-ai-generated-phage-genomes/) (Science & math; Arc Institute, Stanford University; historic). It is a milestone toward AI-designed life forms and phage therapies against resistant bacteria, and a biosecurity flashpoint. Source: https://www.biorxiv.org/content/10.1101/2025.09.12.675911v1 ## Wednesday 10 September 2025 - [Math Inc's Gauss agent completes the Strong Prime Number Theorem formalisation in Lean in three weeks](https://postcutoff.com/e/2025-09-10-math-inc-gauss-strong-pnt/) (Science & math; Math Inc; major). Autoformalization at this scale points to a future where new proofs, including AI-generated ones, are routinely machine-checked. Source: https://www.math.inc/gauss ## Thursday 14 August 2025 - [Generative AI designs new antibiotics that kill drug-resistant gonorrhoea and MRSA](https://postcutoff.com/e/2025-08-14-mit-generative-ai-antibiotics/) (Science & math; MIT; major). It showed generative AI exploring chemical space beyond existing compound libraries for one of medicine's most urgent needs. Source: https://news.mit.edu/2025/using-generative-ai-researchers-design-compounds-kill-drug-resistant-bacteria-0814 ## Thursday 7 August 2025 - [OpenAI launches GPT-5](https://postcutoff.com/e/2025-08-07-gpt-5/) (Model releases; OpenAI; historic). Brought reasoning-model capability to hundreds of millions of free users by default. Source: https://openai.com/index/introducing-gpt-5/ ## Tuesday 5 August 2025 - [Google DeepMind's Genie 3 generates interactive worlds in real time](https://postcutoff.com/e/2025-08-05-genie-3/) (Research; Google DeepMind; major). World models are seen as a path to training embodied agents and robots in unlimited simulated environments. Source: https://deepmind.google/discover/blog/genie-3-a-new-frontier-for-world-models/ ## Wednesday 23 July 2025 - [White House releases 'America's AI Action Plan'](https://postcutoff.com/e/2025-07-23-america-ai-action-plan/) (Policy & safety; The White House; major). Defined US federal AI policy direction, prioritizing speed, energy and exports over the safety-focused approach of 2023. Source: https://www.whitehouse.gov/articles/2025/07/white-house-unveils-americas-ai-action-plan/ ## Monday 21 July 2025 - [AI systems reach gold-medal level at the International Mathematical Olympiad](https://postcutoff.com/e/2025-07-21-imo-gold-ai/) (Science & math; Google DeepMind, OpenAI; historic). A long-standing AI grand challenge fell years earlier than many forecasters expected, showcasing the power of RL-trained reasoning. Source: https://deepmind.google/blog/advanced-version-of-gemini-with-deep-think-officially-achieves-gold-medal-standard-at-the-international-mathematical-olympiad/ ## Tuesday 10 June 2025 - [Sam Altman publishes "The Gentle Singularity"](https://postcutoff.com/e/2025-06-10-altman-the-gentle-singularity/) (Policy & safety; OpenAI; major). Its 2026 prediction of AI systems producing novel insights is now checkable against the 2026 wave of AI mathematics and science results (for example the Navier–Stokes and open-problems claims). Source: https://blog.samaltman.com/the-gentle-singularity ## Thursday 22 May 2025 - [Anthropic releases Claude Opus 4 and Sonnet 4](https://postcutoff.com/e/2025-05-22-claude-4/) (Model releases; Anthropic; historic). Cemented Claude's lead in coding agents and was the first frontier deployment under elevated safeguards for CBRN risk. Source: https://www.anthropic.com/news/claude-4 ## Tuesday 20 May 2025 - [Google's Veo 3 generates video with native audio](https://postcutoff.com/e/2025-05-20-veo-3/) (Media generation; Google DeepMind; major). Crossed the uncanny valley for short AI video with dialogue, intensifying concerns about synthetic media. Source: https://deepmind.google/models/veo/ ## Wednesday 14 May 2025 - [AlphaEvolve: Gemini-powered agent discovers new algorithms](https://postcutoff.com/e/2025-05-14-alphaevolve/) (Science & math; Google DeepMind; major). A concrete example of LLM-based systems making novel discoveries and improving the infrastructure that trains them — an early form of recursive improvement. Source: https://deepmind.google/discover/blog/alphaevolve-a-gemini-powered-coding-agent-for-designing-advanced-algorithms/ ## Thursday 3 April 2025 - [AI Futures Project publishes "AI 2027", a month-by-month scenario of superhuman AI](https://postcutoff.com/e/2025-04-03-ai-2027/) (Policy & safety; AI Futures Project; major). It became a shared reference point for policymakers and labs. Source: https://ai-2027.com/ ## Tuesday 25 March 2025 - [Gemini 2.5 Pro takes the top of the leaderboards](https://postcutoff.com/e/2025-03-25-gemini-2-5-pro/) (Model releases; Google DeepMind; major). Google moved from follower to co-leader of the frontier race, reshaping competitive dynamics in 2025. Source: https://blog.google/technology/google-deepmind/gemini-model-thinking-updates-march-2025/ ## Wednesday 12 March 2025 - [Sakana's AI Scientist-v2 writes the first fully AI-generated paper to pass peer review](https://postcutoff.com/e/2025-03-12-sakana-ai-scientist-v2-peer-review/) (Science & math; Sakana AI, University of British Columbia, University of Oxford; major). It was the first demonstration that a fully automated pipeline could clear human peer review, even at a workshop with a higher acceptance rate than main tracks. Source: https://sakana.ai/ai-scientist-first-publication/ ## Tuesday 25 February 2025 - [AI weather forecasting goes operational](https://postcutoff.com/e/2025-02-25-ecmwf-aifs-operational-ai-weather/) (Science & math; ECMWF, NOAA; major). It is one of the fastest transitions of AI research into critical public infrastructure. Source: https://www.ecmwf.int/en/about/media-centre/news/2025/ecmwfs-ai-forecasts-become-operational ## Monday 24 February 2025 - [Claude 3.7 Sonnet (hybrid reasoning) and Claude Code preview](https://postcutoff.com/e/2025-02-24-claude-3-7-sonnet-claude-code/) (Model releases; Anthropic; major). Claude Code became a breakout product and a template for terminal coding agents (Codex CLI, Gemini CLI), shifting software development toward agent delegation. Source: https://www.anthropic.com/news/claude-3-7-sonnet ## Wednesday 19 February 2025 - [Google's AI co-scientist independently reproduces an unpublished superbug discovery in 48 hours](https://postcutoff.com/e/2025-02-19-google-ai-co-scientist/) (Science & math; Google, Google DeepMind, Imperial College London, Stanford University; major). It was the most-cited early example of an LLM system generating a correct, non-obvious scientific hypothesis. Source: https://www.nature.com/articles/s41586-026-10644-y ## Tuesday 21 January 2025 - [Stargate: $500 billion AI infrastructure venture announced](https://postcutoff.com/e/2025-01-21-stargate-project/) (Chips & compute; OpenAI, SoftBank, Oracle, MGX; major). Symbolized the shift to industrial-scale AI compute build-out, measured in gigawatts and hundreds of billions of dollars. Source: https://openai.com/index/announcing-the-stargate-project/ ## Monday 20 January 2025 - [DeepSeek-R1: open-weights reasoning model rivals o1 and shakes markets](https://postcutoff.com/e/2025-01-20-deepseek-r1/) (Open source; DeepSeek; historic). The 'DeepSeek moment' showed that frontier reasoning could be replicated cheaply and openly, triggering a market shock, a wave of open reasoning models, and US policy debates on China. Source: https://arxiv.org/abs/2501.12948 ## Thursday 26 December 2024 - [DeepSeek-V3: frontier-level open model trained for ~$5.6M in GPU time](https://postcutoff.com/e/2024-12-26-deepseek-v3/) (Open source; DeepSeek; historic). Upended assumptions about the cost of frontier AI and China's position; it was the base for DeepSeek-R1 weeks later. Source: https://arxiv.org/abs/2412.19437 ## Friday 20 December 2024 - [OpenAI announces o3, scoring 75.7–87.5% on ARC-AGI](https://postcutoff.com/e/2024-12-20-openai-o3/) (Benchmarks; OpenAI, ARC Prize; historic). Convinced many observers that reasoning models were on a steep trajectory; ARC Prize called it a genuine step-change. Source: https://arcprize.org/blog/oai-o3-pub-breakthrough Previous page: https://postcutoff.com/news/major/4/ Next page: https://postcutoff.com/news/major/6/ Other views: All https://postcutoff.com/news/; Major only https://postcutoff.com/news/major/; Policy & safety https://postcutoff.com/news/policy-safety/; Science & math https://postcutoff.com/news/science/; Business https://postcutoff.com/news/business/; Model releases https://postcutoff.com/news/model-release/; Research https://postcutoff.com/news/research/; Chips & compute https://postcutoff.com/news/hardware-compute/; Products https://postcutoff.com/news/product/; Open source https://postcutoff.com/news/open-source/; Agents https://postcutoff.com/news/agents/; Robotics https://postcutoff.com/news/robotics/; Media generation https://postcutoff.com/news/media-generation/; Benchmarks https://postcutoff.com/news/benchmark/; Culture https://postcutoff.com/news/culture/; Milestones https://postcutoff.com/news/milestone/. 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