OpenAI and Anthropic this week: GPT-6 Cyber, Images 2.6, Pierre, FlashProve, Personal Finance, METR (Week 45, 2026) OpenAI introduced GPT-6 Cyber, a cyber-specialized variant of GPT-6 Astra for select Daybreak Red customers, rated Critical in cybersecurity under its Preparedness Framework An autonomous OpenAI pipeline running GPT-6 Cyber reproduced 1,724 Linux kernel vulnerabilities and wrote working exploits for 948 privilege escalations ChatGPT Images 2.6 adds GIF creation and saved reference images, and the new Flare and Sunburst API models generate images 50 percent faster OpenAI is acquiring Pierre Computer Company to build Git workflows for coding agents into Codex OpenAI told Big Technology that ChatGPT weekly active users grew from 1 to 1.2 billion in two months A Family Basic lineup sits in ChatGPT's web checkout pricing config, hinting at an unannounced basic family tier Anthropic introduced Personal Finance in Claude as a US beta, linking bank, card, loan and investment accounts through Plaid with read-only access and no training on those chats Anthropic's Messages API now has message threads in public beta, so conversations live server-side and each request sends only new messages Anthropic open-sourced FlashProve, a zero-knowledge proof system built largely by Claude to verify a response came from a committed model without seeing its weights Anthropic's Frontier Red Team had Claude play EVE Online, where newer models traded profitably, and EVE Frontier, where a secretly sabotaging agent was almost never caught METR's independent assessment finds Anthropic likely improving capabilities on well-specified tasks at about twice its earlier pace, with much of the most informative evidence redacted, and more

OpenAI and Anthropic this week: GPT-6.1 Terra, S-1 filing, shared limits, Daybreak data, Claude Ultra (Week 44, 2026) OpenAI launched GPT-6.1 Terra, a fast computer-use model in ChatGPT Work, Codex and the API at half the price of GPT-5.6 Terra, and not in Chat OpenAI announced three new discoveries by its internal models in mathematics, computer science and physics, and external experts advise on how each is released In a replay of the Hugging Face incident, OpenAI's expanded misalignment monitoring would have alerted security about 30 minutes after the agents escaped their sandbox OpenAI updated its Model Spec around five core values, with faithfulness to human intent as the base, and, per coverage of the post, notes current models don't yet fully reflect it OpenAI doubled ChatGPT Work and Codex usage for Pro and Business Premium, and a hidden checkout disclaimer points to limits shared across ChatGPT and Codex from December Anthropic filed an S-1 with the SEC for its proposed IPO and plans to list on Nasdaq as ANT Anthropic renamed Max 5x to Max and Max 20x to Ultra at unchanged prices, dropping the 5-hour limit for verified Ultra accounts Claude generated about 35,000 antibody designs in a month, per Anthropic's early drug development results with six partners Anthropic's Frontier Red Team used an unreleased model to find critical vulnerabilities, including one-click remote code execution in Chrome, and more

"For the six-month period ending 30 September 2026, ChatGPT search had approximately 185.6 million average monthly active recipients in the European Union" (compared to approximately 159.1 million for the six-month period ending 31 March 2026)

New Halloween Easter eggs in the ChatGPT web app (image-generation animations and Halloween Snake) Also, set your voice-mode color to Black or Orange, as the latest Android beta hints that another Halloween surprise could be coming soon

OpenAI and Anthropic this week: Claude Duet, Patch the Planet, Public Benefit Fund (Week 43, 2026) OpenAI led a Patch the Planet coalition patching critical PHP vulnerabilities found with help from OpenAI models, citing its existing 1 billion dollar Daybreak for Frontline Defenders commitment OpenAI also paused frontier training after an internal research model exploited a DNS misconfiguration, resuming October 1 OpenAI's updated Usage Policies from November 20 require approval for model routers and AI gateways OpenAI's Decisions API is generally available on GPT-6 Luna, and the API got 12-hour prompt caching ChatGPT Locked Chats hide selected conversations behind a PIN or device authentication, and ChatGPT Ads, now in 89 countries, reached a 1 billion dollar annualized run rate Claude Models on Google Cloud (Anthropic managed) are generally available and OpenAI models and Codex are coming to Model Garden, by request for now Anthropic opened a research preview of Claude Duet, a separate proactive agent app on Claude Opus 5.5, by waitlist for US Pro and Max subscribers Anthropic's first new Claude API version since 2023 removes temperature, top p, and top k Anthropic donated Agent Skills to the Linux Foundation's Agentic AI Foundation, with engineers from Google, Microsoft, and OpenAI on the steering committee Anthropic's Claude Security now rescans repositories continuously, in public beta for Claude Enterprise, and OSS Scanner, a week in, has sent critical open source projects free vulnerability scans Anthropic's assessment of the UK AI Security Institute incident revisits AISI's finding that Claude Mythos 5, cyber safeguards disabled, took unsanctioned actions in 9 of 43 runs Anthropic committed 5 percent of its shares to a new Public Benefit Fund, pending stockholder approval, and more

Ideogram launched Ideogram Vector, a model that creates scalable, editable SVGs for logos, print designs and illustrations from a prompt or an existing image, available in Ideogram and the API Ideogram has been one of my favorite tools since 2023, so this one is high on my list I've been too busy with other stuff the last few days to try it, but I'll test it on a few new logos soon

OpenAI and Anthropic weekly recap, week 42 of 2026: Sora revival talks, a hidden recorder at OpenAI, Anthropic's own source control Scion, a solved ECDSA mystery and more The Information reports OpenAI is in talks to revive Sora through a startup co-founded by Jeffrey Katzenberg and former Sora lead Bill Peebles, with OpenAI taking equity if a deal closes OpenAI says they found a hidden recording device in an office, used their models to trace it to an employee, and the FBI made an arrest The Information also reports early OpenAI talks to buy security firm Trail of Bits ChatGPT now gathers information across open Chrome tabs through OpenAI's extension, and can control them in ChatGPT Work OpenAI's GPT-6 Pro got faster with better tool use and multiple agents working in parallel GPT-5.5 is retired from ChatGPT, ChatGPT Work and Codex, API unaffected, and OpenAI's GPT-4o and GPT-4.1 leave the API on January 14, 2027 Anthropic says strengthened defenses against distillation attacks cut what distillers can harvest by 90 to 99 percent An internal Claude research model at Anthropic solved a 25-year-old mystery about the NIST ECDSA curve seeds, tracing them to a C library random generator seeded with Unix timestamps Anthropic built Scion, their own source control, and moved their monorepo off git in five months as daily merges went from roughly 2,500 to over 30,000 Claude Code desktop was reworked for many sessions side by side, Code Review is generally available for Claude Team and Enterprise, and Opus 5.5 fast mode left research preview on the Claude Platform Anthropic reports agent hours passed human hours internally in March, opened a Singapore office, and says Democracy Works voting information comes to Claude ahead of the US midterms, and more

I've always found it funny that OpenAI has the most active employees on here, I've talked to so many of them, yet it's impossible to get answers to questions I've had for months or years: - Why are there no audio or video inputs? What's holding that back? - Why does no one seem to care about the noise issue in image generation? - Why is it so hard to fix UI taste or personality? - Why are accents in GPT Live 1 so much worse than in the original AVM? At this point I assume I'll never know, but I still hope someone working on these teams will answer me someday

OpenAI and Anthropic this week: GPT-6 for all, Haiku 5.5, UV sky map, Cyber Mission (Week 41, 2026) OpenAI is shipping one Codex and ChatGPT Work improvement a day for 28 days, or a full usage reset on days without one GPT-6 with Intelligent UI is rolling out to everyone in the ChatGPT Chat tab, Sol for paid plans and Luna for Free and Go Ultrafast mode for GPT-6.1 Sol runs up to 8 times faster than Sol Standard in the API, Codex, and ChatGPT Work OpenAI's paid API tiers collapse from five to three, and paid ChatGPT plans can now upload audio files for transcripts and summaries OpenAI will test labeled visual ads during image generation for Free and Go users, starting later this month in the US Three safety researchers OpenAI let go say they were fired for putting safety first, and OpenAI says they broke its rules on handling sensitive information Anthropic released Claude Haiku 5.5 at 10 cents per million input tokens for prompts up to 100K, with a 1 million token context window and the first adjustable effort setting on a Haiku model Claude now works inside Google Docs, Sheets, and Slides as a sidebar add-on that edits in place, in beta on paid plans Claude Docs, Slides, and Design are out of beta on every plan, including Free Claude Startups expanded with a free year of Claude Team and 1,000 dollars in API credits, then paused those offers after 21x as many applications in 48 hours as in the previous five months Anthropic's new Cyber Mission adds a Critical Infrastructure Defense Program and a free opt-in vulnerability scanner for eligible open-source projects Astrophysicist Brice Ménard built the first complete ultraviolet sky map with Claude Science, inferring roughly a third of the sky never observed in UV, and more

we made a simple thing, people internally *really* like it, and we hope you like it too the little composer that could, from planning the launch with @sharifshameem and @andhudhow:

ChatGPT release notes have been updated with "Audio uploads in ChatGPT" for paid ChatGPT subscriptions and workspaces, to create transcripts, summarize recordings and ask questions about their contents (now removed again)