Mo Explains
Is There a ChatGPT Watermark? Only in the EU, for Now
Is there a ChatGPT watermark? OpenAI is marking ChatGPT text in the EU but not the US yet. Here's who can detect it and how Claude and Gemini compare.
News
AI news and updates on Mo Explains, newest first.
46 articles
Is Claude Writing Getting Worse? What an Anthropic Engineer Said
Is Claude writing getting worse? An Anthropic engineer says training for math and code made it dense. What Opus 5.5 changed, and what to tell Claude now.
Free Gemini Drops to Flash-Lite on October 9. Here's What You Lose.
Starting October 9, free Gemini drops to one model, Flash-Lite. Here's what free users and AI Plus subscribers lose, what you'll notice, and what Pro costs.
Claude Sonnet 5.5 Got Smarter and Cheaper. That's What I Want From Every Model Release.
Claude Sonnet 5.5 runs 30% faster than Sonnet 5 and costs up to 30% less per task. Who gets it free, the max-effort catch, and why I think Anthropic's on track.
ChatGPT Pro 500 Is Official, and It's for the Busy Months
ChatGPT Pro 500 is official: $500 a month and the only Pro plan with Astra Ultrafast. What changed for Pro 200, and the one busy month I'd actually buy it.
GPT-6 Sol and Luna Are Here. Here's Where You'll Actually See Them.
GPT-6 Sol and Luna launched September 22, 2026 in ChatGPT Work and Codex, not regular chat. Where they show up, the 50% API price cut, and my honest take.
ChatGPT Keeps Erroring for Plus and Pro Users. Here's What OpenAI's Status Page Says.
ChatGPT errors hit Plus and Pro subscribers three days running. Here's what OpenAI's status page lists, how to check it yourself, and what to do when it fails.
OpenAI Is Retiring Custom GPTs. Here's What Happens to Yours.
Custom GPTs retiring: OpenAI set December 11, 2026 for all plans. Here's what carries over to plugins, what doesn't, and what you should save this week.
Instagram Plus Costs $3.99 a Month. You Still See the Ads.
Instagram Plus is $3.99 a month and regular Instagram stays free. Here's what Meta One adds, what each plan costs, and why paying doesn't remove the ads.
ChatGPT Now Has Sponsored Agents. Here's Who You're Actually Talking To.
ChatGPT sponsored agents let you chat with a brand's bot after tapping an ad. Here's who sees them, how they're labeled, and what OpenAI still hasn't said.