Watermarks and ad money, Oct 6
On the same day, OpenAI moved to label AI text in Europe and to sell ads in America, while the cost of the AI build-out showed up in phone prices.
On October 5, OpenAI pointed in two directions at once. In the European Union it said it would start adding invisible watermarks to text from ChatGPT and Codex, meeting the transparency rules of the EU AI Act. In the United States, the same company said it would begin showing visual ads inside ChatGPT. The rest of the day read along the same lines: new ways to build AI, and new costs from running it.
TechCrunch reported that OpenAI's method, called textGrain, nudges a model's word choices to leave a pattern readers cannot see but specialised systems can. OpenAI says the mark does not identify the user, and that it saw no meaningful change in model performance with it switched on. It also owned up to the limits. According to TechCrunch, replacing 10% of the words cut detection from 92% to 66%, and a missing watermark does not prove a human wrote the text. It reaches eligible EU users over the coming weeks, and the detector goes first to approved researchers and expert organisations.
The advertising move points the other way. In a post titled "Building advertising for the way people use AI," OpenAI introduced a visual ad format, along with expanded measurement, attribution and brand-suitability tools for advertisers. TechCrunch reported that the ads will sit next to image-generation results, starting later this month in the U.S. only, with an initial test group of advertisers.
The cost of the build-out turned up far from any chatbot. Rest of World reported that demand for memory chips from AI data centers is pushing smartphone makers to raise prices and drop their cheapest models. IDC's Ramon Llamas said the three main memory makers shifted most of their supply to data centers in late 2025. Existing phones rose about 15% globally in 2026, and new models cost about 25% more than a year earlier. Xiaomi's Redmi 15C climbed from 12,499 rupees ($140) to 16,999 rupees ($190) between December and June. In Africa, shipments of phones under $100 fell 34% year over year in the second quarter.
There was a new model to run, too. TechCrunch reported that Reflection AI released Beam, an open-weight mixture-of-experts system with 501 billion total parameters, 23 billion of them active, and a one-million-token context window. Reflection says it matches Z.ai's GLM-5.2 on reasoning benchmarks while using three to four times less inference compute, and it is pitching "AI factories" that let enterprises and governments train its models on their own data. The company has raised about $4.7 billion and is testing the idea with South Korea's Shinsegae Group.
Last, TechCrunch reported that independent researchers are tracking what looks like a fleet of AI agents running on Tencent's infrastructure and querying Alibaba's map service, Amap, for directions to the entrances of parks, zoos and hospitals. The researchers prefer "agent fleet" to "swarm," since the agents showed no sign of talking to each other. For now the activity looks like little more than side-stepping Alibaba's API rules. The report warns that may not always hold.
Sources
- Our approach to EU text provenance rules · OpenAI News
- OpenAI will start watermarking ChatGPT’s text in the EU · TechCrunch, AI
- The AI boom is making the world’s cheapest smartphones disappear · Rest of World
- Reflection debuts Beam, an open-weight AI model to rival Chinese models at lower compute cost · TechCrunch, AI
- Building advertising for the way people use AI · OpenAI News
- OpenAI launches visual ads that appear alongside image generation results · TechCrunch, AI
- Researchers are tracking a Chinese AI ‘agent fleet’ · TechCrunch, AI