OpenAI announced on October 30, 2026 that it will honor a shared signal in robots.txt — the file websites use to state how their content may be used — so website owners can communicate one AI-training preference to multiple participating providers at once, instead of writing separate rules for every crawler. Google, Microsoft, and Anthropic joined the same shared-signal announcement. OpenAI says it aims to implement the signal in the coming months, and its existing robots.txt controls will keep applying.
Hook: One line can now tell AI companies: don’t train on this.
Context: OpenAI announced a shared training signal in robots.txt on October 30. Google, Microsoft, and Anthropic joined the same shared signal announcement.
Stakes: Before, website owners wrote separate rules for every single crawler. Now one preference reaches every participating provider at the same time.
Payoff: If you run a site, add it once, not per company. Expect OpenAI to roll it out over the coming months. One line, one choice, heard by every participating provider.
User-Agent: __usage_ai-trainingDisallow: /
Watch next: Toyota and Waymo will test driverless bZ4X robotaxis in Japan in 2027, with the UK to follow — the cars are built at Toyota’s Takaoka plant.
Links:
Instagram reel: https://www.instagram.com/reel/DfKqy3mgw5Q/
Sources:
- OpenAI, “Making it easier for websites to express AI training preferences” (October 30, 2026): https://openai.com/index/helping-websites-express-ai-training-preferences/
- TSN Media, “AI Training Opt-Out: Google, OpenAI, Microsoft Sign On”: https://tsnmedia.org/ai-training-opt-out-robots-txt/
- Unite.AI, “OpenAI to Honor Shared Robots.txt Signal for AI Training Preferences”: https://www.unite.ai/openai-to-honor-shared-robots-txt-signal-for-ai-training-preferences/
- TechCrunch, “Waymo’s next robotaxi will be a Toyota bZ4X, destined for Japan and the UK”: https://techcrunch.com/2026/10/30/waymos-next-robotaxi-will-be-a-toyota-bz4x-destined-for-japan-and-the-uk/
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