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Microsoft has released Microsoft-Decision-1, a small model that picks between fixed answer options instead of writing text. Microsoft built it on Alibaba’s open-weight Qwen3.5-9B and then post-trained it, according to the Foundry model card.
Google’s Gemini 4 Argon is level with OpenAI’s GPT-6 Astra in early independent tests. It scored 53 on the Artificial Analysis Intelligence Index, the same as GPT-6 Astra and one point ahead of GPT-6.1 Sol, Artificial Analysis said. Anthropic’s Claude Opus 5.5 still leads the index, with 58.
Restate, a Berlin startup founded by the creators of Apache Flink, has raised a $20m Series A. It builds infrastructure that keeps AI agents and backend software running through failures.
Google has unveiled Gemini 4 Argon, the first new generation of its flagship AI model since Gemini 3 last November. A small group of cybersecurity defenders gets it first. Paid API customers and Google AI Ultra subscribers are next, Google said on Wednesday.
Alex Stamos has joined Cognition, the maker of the Devin AI coding agent, as its chief information security officer. He announced the move in an article on X on Tuesday, titled “Why I’m joining Cognition”. “There are real safety and security issues raised by AI, but they can be fixed.
Companies can now build OpenAI agents that run entirely inside Amazon Web Services, with their data never leaving AWS. OpenAI and Amazon launched Bedrock Managed Agents, powered by OpenAI, at OpenAI’s DevDay 2026 event in San Francisco on Tuesday.
Update, 29 September 2026 This article has been updated with OpenAI’s commitment not to reintroduce the five-hour limit on Pro 200. OpenAI is halving the usage included in its $200 ChatGPT Pro plan and launching a $500 plan with its fastest speed tier.
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