Google, Microsoft and OpenAI back a shared robots.txt signal against AI training
On 30 October, Google and Microsoft announced that they will respect a joint signal in robots.txt that lets you indicate with a single line that your content may not be used for AI training; OpenAI made the same commitment. Microsoft uses the rule User-Agent: __usage_ai-training for this and will honour it from 1 February 2027, while Google intends to support it in 2027 and treats it as a Disallow for Google-Extended. The signal does not remove your content from models that have already been trained, and the existing rules per crawler continue to work.
What does this mean? If you run a website with your own content, you will soon be able to object to training with several AI providers using a single robots.txt rule, without having to maintain separate rules per crawler.
Anthropic removes the five-hour limit from Claude Ultra and renames the Max subscriptions
Max 5x is now called Max and costs $100 per month, Max 20x is now called Ultra and costs $200 per month; the prices stay the same. On Ultra the limit per five hours is dropped, only the weekly limit remains. This applies only to verified accounts; Pro and Max keep their five-hour limit.
What does this mean? If you let Claude work autonomously for hours, such a task on Ultra no longer stalls on the five-hour limit, but the weekly limit remains your ceiling.
OpenAI reported over 200 conversations to the police and restricts weapons information for teenagers
In the third quarter, OpenAI made more than 200 reports to investigative authorities about imminent violence. ChatGPT no longer gives users under 18 practical information about weapons and security systems, and can automatically end conversations in which someone appears fixated on violence. The first Community Safety Report is due in early 2027 and covers the second half of 2026.
What does this mean? Conversations with ChatGPT are screened and can reach the police in the case of serious signals, so do not treat them as confidential.
