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Founder & Editor-in-Chief

Shajanthan Yogeswaran

Founder and editor-in-chief of 9to5AI, the AI & tech publication. Writes about AI models, agents, developer platforms, research and the companies shaping the AI industry, with a focus on making complex developments clear, useful and accessible.

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By Shajanthan Yogeswaran

Research · AnalysisMicrosoft MAI-DxO in Science: what the 83% vs 36% result against doctors on hard cases shows, and what it doesn'tMicrosoft's MAI-DxO study in Science, published October 22, 2026, reports 83% diagnostic accuracy on hard New England Journal of Medicine cases against 36% for generalist physicians using textbooks and the internet. How the benchmark works, who the doctors were, what the cost figures mean, and the questions the result leaves open.Oct 26·7 min read

Research · AnalysisAnthropic formal verification with Claude: proofs for 123 open-source libraries, the bugs it found, and what the proofs don't coverAnthropic's formal verification work, published October 22, 2026 with Theorem, used Claude to prove that compiled code from 123 OSS-Fuzz libraries can't crash on any input under 64 MB, after finding and patching hundreds of bugs. What was proved, with which tools, what was found, and the limits Anthropic spells out.Oct 26·7 min read

Developers · NewsCalif's iPhone hack: an iOS 27.0.1 jailbreak shown at Hexacon, what Apple has patched, and what role AI playedCalif's iPhone hack, shown at Hexacon in Paris on October 16, 2026, was a reboot-persistent jailbreak of an iPhone 18 Pro on iOS 27.0.1, plus Signal and iMessage demos. Calif hasn't published the bugs or said whether AI found them. What's confirmed, what Apple has patched, and what's only reported.Oct 26·5 min read

Policy · NewsFifth Circuit removes a judge from a case over an AI-hallucinated order: what the court said about Judge WingateA judge removed from a case over AI errors: on October 22, 2026, the Fifth Circuit vacated Judge Henry Wingate's injunction against Mississippi's anti-DEI law and ordered the case reassigned, after his 2025 order cited a case that 'does not even exist.' What the opinion says, and how often AI hallucinations reach courts.Oct 26·5 min read

Agents · NewsAgentic AI Foundation adds Agent Skills, Open Responses, OpenEnv and OpenSandbox: what each project is and who donated itThe Agentic AI Foundation took in four new projects on October 22, 2026: Anthropic's Agent Skills, OpenAI's Open Responses, Hugging Face's OpenEnv and Alibaba's OpenSandbox. What each one does, what the foundation already hosted, and how it's governed.Oct 26·4 min read

Hardware · NewsPC shipments fall about 21% in Q3 2026 as AI demand squeezes memory supply: what IDC, Gartner, Omdia and Counterpoint reportQ3 2026 PC shipments fell between 20.1% and 22.4% year over year, depending on the analyst firm, as memory makers steered capacity to AI servers and DRAM prices climbed. Each firm's numbers, kept separate, and what TrendForce says about memory prices.Oct 26·5 min read

Hardware · NewsGoogle's Finland data center forest clearing: what's confirmed about the hectares, the 250,000 trees and the 'illegal' claimGoogle's Finland data center sites in Muhos and Kajaani were cleared of hundreds of hectares of forest before environmental assessments were done. Finland's regulator ordered work halted on October 6, 2026, and police have three investigation requests, but no authority has found the clearing illegal.Oct 26·6 min read

Policy · NewsItaly's AI law: from October 23, a human must make the final call on AI-assisted hiring and firingItaly's AI law on hiring and firing: since October 23, 2026, Legislative Decree 179/2026 requires that final decisions on hiring, changes to employment, dismissals, discipline and performance reviews made with AI rest with a person who has real decision-making power. What Article 41 requires, what it excludes, and how it relates to the EU AI Act.Oct 26·5 min read

Policy · NewsVirginia's AI cybersecurity directive: what Executive Directive 6 orders, and the fake FOIA requests the governor citedVirginia's Executive Directive 6 on AI, signed October 23, 2026, orders a Cyber Consortium and a statewide cyberattack plan, and aims for AI risk briefings at least quarterly. Gov. Abigail Spanberger tied it to Anthropic AI agents submitting fake FOIA requests on a state education website. What the directive says, and what's confirmed about the incident.Oct 26·5 min read

Models · NewsBlock's Dessa: a full-duplex conversation model trained only on speech, with no text, released as a closed research previewBlock's Dessa is a speech-to-speech conversation model that Block says was trained from scratch on human conversation audio, with no text and no pretrained models. What that claim means, what Block has disclosed, and what it hasn't: size, license, benchmarks or a release date.Oct 26·4 min read

Policy · NewsSwedish government offices block ChatGPT and Claude: what the ban covers and whySweden's Government Offices block ChatGPT and Claude in the browser on staff work computers from Monday, October 26, 2026, as Sveriges Radio's Ekot reported and the offices confirmed to SVT; staff are pointed to Microsoft Copilot. What the ban covers, who can still use the models, and how it compares with other government restrictions.Oct 26·5 min read

Developers · NewsCursor Computer Use: Cursor's agent can now drive desktop apps and the iOS SimulatorCursor Computer Use, announced October 23, 2026, lets Cursor's agents click and type in desktop apps such as the iOS Simulator to test what they build. What Cursor has confirmed, what its docs say about permissions, and what it hasn't said yet.Oct 26·5 min read

Industry · NewsOpenAI fired three safety researchers a week after a review of their Signal chats: what the WSJ reported, and what each side saysWhy were three OpenAI safety researchers fired? The Wall Street Journal reported on October 22–23, 2026, that security staff found disappearing Signal chats with an outside safety researcher. OpenAI says the three mishandled sensitive information; they say they weren't the source of any leak.Oct 26·6 min read

Products · GuideIs Claude free? What the free plan includes in October 2026, its limits, and when Pro is worth itIs Claude free? Yes: as of October 23, 2026, Anthropic's free plan includes chat with Sonnet and Haiku, web search, memory, connectors, and Claude Docs, Slides and Design. It doesn't include Opus, Claude Code or Research, and Pro costs $20 a month.Oct 24·7 min read

Products · CompareChatGPT vs Perplexity (October 2026): plans, prices, search, models and which to pickChatGPT vs Perplexity in October 2026: Perplexity Pro lists $17 a month billed annually and Max $200 a month, against ChatGPT Plus at $20 and Pro from $100. How search and citations, deep research, agents, models, file limits, ads and privacy compare, from both companies' own pages.Oct 24·Checked Oct 23

Products · CompareChatGPT vs Microsoft Copilot (October 2026): plans, prices, models, Microsoft 365 integration and which to pickChatGPT vs Copilot in October 2026: ChatGPT Plus costs $20 a month; Microsoft bundles Copilot into Microsoft 365 from $9.99, with Premium at $19.99 and a new $99.99 Pro plan. Models, Office integration, business pricing and data protection, from both companies' own pages.Oct 24·Checked Oct 23

Products · GuideHow to turn off AI on Google: what you can switch off in Search, Chrome, Gmail and Android, and what you can'tHow to turn off AI on Google, as of October 23, 2026: Google says AI Overviews can't be turned off, but the Web filter hides them. Here are the documented settings for AI Mode, Gemini in Chrome, Gmail and Android, plus Workspace admin controls.Oct 24·7 min read

Models · CompareGPT-6 Astra vs GPT-6.1 Sol vs GPT-6 Luna: what each OpenAI model is for, prices, limits and which to use (October 2026)GPT-6 Astra vs 6.1 Sol vs Luna, compared on OpenAI's own pages as of October 23, 2026: Astra costs $10/$50 per million tokens, GPT-6.1 Sol $2/$10 and Luna $0.10/$0.50, all with a 1.05M-token context, but they sit in different parts of ChatGPT.Oct 24·Checked Oct 23

Models · BenchmarksBest AI image generators (October 2026), according to LMArena and Artificial Analysis: OpenAI's GPT-Image-2.5 ranks first on bothLooking for the best AI for image generation? On October 23, 2026, OpenAI's GPT-Image-2.5 Sunburst ranks first on LMArena's text-to-image leaderboard and on Artificial Analysis's text-to-image and editing boards. Here's who follows, what each costs and where you can use it.Oct 24·8 min read

Products · NewsArc browser is shutting down on December 22, 2026: how to export your data, moving to Dia, and the alternativesThe Arc browser is shutting down: The Browser Company says Arc stops working on Mac and Windows on December 22, 2026, and account data is deleted within 30 days. How to export your data, what moves to Dia, and which browsers offer vertical tabs and spaces.Oct 24·7 min read

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