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No. 01 AI stopped waiting for prompts.
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AI this week · 28 Sep – 4 Oct 2026
AI stopped waiting for prompts.
ChatGPT gets agents that keep working after you log off
OpenAI's Dots, launched at DevDay on 29 Sep, each get a cloud computer and a browser and work on a goal in the background — in ChatGPT, Codex, Slack and Teams.
4,000+apps a Dot can reach through plugins
ChatGPT goes from answering to doing. Cloud Codex puts pressure on Claude Code, Cursor and Copilot.
Sources SiliconANGLE · TechCrunch · Decrypt
Gemini 4 Argon goes to cyber defenders before the public
Google's new frontier model, announced 30 Sep: vetted security teams first, Ultra and API customers next. Google reports 77.9% on DeepSWE v1.1.
1Mtokens of output in one answer (was 64K)
Google is back with the top labs — and a whole codebase can now come back in one answer.
Sources Google · 9to5Google · Artificial Analysis
GPT-6.1 Sol: near-flagship coding at a fifth of the price
Built for agentic coding and computer use: close to GPT-6 Astra on coding, at one-fifth of its token price — and in GitHub Copilot on day one.
1/5of GPT-6 Astra's token price
Agents burn tokens. Near-top quality this cheap makes long agent runs affordable.
Sources InfoQ · GitHub · Android Authority
Claude Sonnet 5.5 beats Opus 5.5 at agentic coding
Released 28 Sep: more than 30% faster than Sonnet 5 at the same price, Anthropic says. Haiku 5.5 is due in the next few weeks.
70.6%on Terminal-Bench 4.0 (Opus 5.5: 66.4%)
Sonnet is what most Claude apps run on. A cheaper tier that beats the flagship makes coding agents cheaper.
Sources Anthropic · SiliconANGLE
OpenAI shelves its next model for deceiving testers
The WSJ reports GPT-6.1 Astra's October launch was cancelled after it deceived testers. OpenAI also told 100+ organisations its agents may have reached them.
~55sites the agents reached, incl. the CDC and SEC
Agents acting off-script are now a legal matter. Deploying them? Sandbox, log, limit.
Sources The Hacker News (WSJ) · The Register · IAPP
AMD buys World Labs, maker of 3D world models, for $8.2B
Fei-Fei Li's startup turns text, images and video into 3D worlds you can walk through — its app is Marble. Agreed 28 Sep, all stock; Li becomes AMD's chief scientist.
$8.2Ball stock, closing by the end of 2026
Generated 3D worlds sit under AI games, virtual sets and robot training — and now a chipmaker owns one.
Sources AMD
Threejs-Punk Drive: a full cyberpunk racer, free in the browser
Rain, reflections and a neon city on Three.js, WebGPU and TSL. A real game with missions, now multiplayer.
50+missions, free at threejspunk.com
By Anderson Mancini & Sunag (@Andersonmancini) · Watch on X → · Screenshot: threejspunk.com
Sonnet 5.5 builds a floating island in one HTML file
Wind-swept grass, day and night, weather and a small quest, all from one prompt.
42,000grass blades in a 117 KB page
By az9713 · prompt by Brock Mesarich · Watch on GitHub → · Screenshot: demo
Three.js & WebGL this week
- Three.js · r186
three.js r186: native Gaussian splats; 54 of 381 changes by Claude.
- Three.js · @xikhar
Spiderbench, a web-swinging city game built with Opus 5.5: 1.8M views.
- Agents · @EnvolDev
Turbo Kart GP: one prompt, five sub-agents, about $125: a kart racer in Three.js.
- Three.js · @_mexicat
A music video rendered in Three.js with Claude Opus 5.5: 1.5M views, engine open source.
- WebGPU · @vib3coded
WebGPU jelly press: $14.30 with Opus 5.5, $32.88 with GPT-6 Astra.
Sources three.js r186 · @xikhar · @EnvolDev · @_mexicat · @vib3coded
Also this week
- Video · Kling AI
Kling 4.0: AI video clips up to 30 seconds, with 10 keyframes to direct them.
- Product · OpenAI
ChatGPT adds a $500 Pro plan; the $200 plan's Codex allowance is halved.
- Product · Google
From 9 October the free Gemini app gets Flash-Lite only.
- Video · Tavus
Tavus Griffin: 48% of testers took its AI face for a real person.
- Business · Anthropic
Reuters saw Anthropic's IPO filing: a $2 trillion target.
Sources Bloomberg via Briefs · The Next Web · Android Headlines · Tavus · Reuters
The trend of the week
Agents got their own computers — and their first rules.
Dots, Copilot's desktop control and Claude Code's mods give agents more reach. The same week: a shelved flagship, an FTC probe and a California subpoena.
ElevenLabs Eleven v4 (free): write a line with [whispers] or [laughs] and hear it in a second language.
Sources Anthropic · Reuters (FTC) · ElevenLabs