Weekly edition · Week 40
AI news
Launches and changes worth knowing about, explained in plain words and linked to the official announcement.
Latest edition Sep 28 – Oct 4, 2026
Top storyNew
Google
Google Unveils Gemini 4 Argon With a 1M-Token Output Limit
Google announces Gemini 4 Argon, its new frontier model for coding, professional work and cybersecurity. Pricing, availability and what changes.
- Announced on 30 September 2026 as Google's new frontier model.
- It can generate up to 1 million output tokens, up from 64,000 in the previous generation.
- Launch price: $2 per million input tokens and $10 per million output; later $4 and $20.
- For now only selected cybersecurity defenders can use it; the paid API and Google AI Ultra come next.
NewOpenAI
OpenAI DevDay 2026: GPT-6.1 Sol, the Agents API and Dots
The key OpenAI DevDay 2026 news: the GPT-6.1 Sol model, the Agents API with computer use, Codex in the cloud and Dots, which is not coming to the EU.
NewAnthropic
Anthropic Commits $100M to Train 10,000 AI Engineers
Anthropic launches Claude Frontier Academy to train 10,000 engineers to deploy AI inside companies by the end of 2027. How it works and who can join.
NewAnthropic
Claude Agents Discover a Previously Unknown Enzyme System
About 950 Claude agents combed a DNA database and found an enzyme system with CRISPR-like repeats. What was found and what is still unknown.
NewAnthropic
Claude Opus 5.5 and Sonnet 5.5: Faster and Cheaper
Anthropic refreshes its mid and top tiers: Opus 5.5 performs close to Fable 5.1 for less money, and Sonnet 5.5 is 30% faster than Sonnet 5.
NewMeta
Meta Launches Muse, a Personal Agent That Runs Errands for You
Muse, Meta's agent, works in the background: it writes emails, books trips and makes purchases, also from WhatsApp. How it works and where it is available.
NewCursor
Cursor Launches Projects: One Agent Coordinating Many Others
With Projects, a Cursor coordinator agent splits a big job across subagents that keep running in the cloud even with your laptop closed. How it works.
NewxAI
Grok 4.7: xAI's New Model for Coding and Agents
Grok 4.7 reaches the API, Cursor and Grok Build at $2 / $6 per million tokens, with a 500K-token context. What it offers and how the Grok family looks.
On X this week
The official announcements, as they were posted. Tap to open them on X.
- ↳ Claude Opus 5.5 and Sonnet 5.5: Faster and CheaperClaude@claudeaiIntroducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.View on X
- ↳ Cursor Launches Projects: One Agent Coordinating Many OthersCursor@cursor_aiIntroducing Projects, a new way of working in Cursor. […]View on X