AI Disruption

AI Disruption

ChatGPT Adds Text Watermarks, GPT-6 50% Faster

OpenAI's Day 1 update boosts GPT-6 speed 50%, adds ChatGPT text watermarks, and tests image ads. See what these changes mean for users.

Meng Li's avatar
Meng Li
Oct 06, 2026
∙ Paid

Few AI vendors truly believe that shipping more can mean shipping better. OpenAI is one of them.

Just as it once held a 12-day run of launch events, yesterday Thibault Sottiaux (known to everyone as Tibo), who leads OpenAI Codex, announced a 28-day commitment: every day from now on, the team will either ship an update that is clearly valuable to most Codex or ChatGPT Work users, or perform a full usage-limit reset.

For Day 1, OpenAI’s answer was speed. For subscribers using GPT-6 Astra and GPT-6.1 Sol, default speed will increase by about 50%, with no settings changes required.

OpenAI Releases GPT-6.1 Sol

OpenAI Releases GPT-6.1 Sol

Meng Li
·
Sep 30
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On the same day, OpenAI also announced two changes of a completely different nature. Some text output from ChatGPT and Codex will begin carrying invisible watermarks, and ChatGPT’s advertising business is preparing to introduce a more visual, image-based format.

Taken together, these updates say a lot about where OpenAI stands. It needs to make paying users feel the subscription is worth it, explain to regulators where AI content comes from, and turn its ever-growing user base into a business that advertisers are willing to pay for.

Beyond the models themselves, the day-to-day concerns of an AI platform are looking more and more like the internet we already know.

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