September 29, 2026: Anthropic Says Its New Sonnet 5.5 Is Faster and Cheaper and On the Free Plan. Plus a Muse Security Follow-Up, ElevenLabs’ New Phone-Ready Voice, and Gemini Gems Retiring

Welcome to the AI Industry Report, daily AI news for small business, built by AI, about AI, from the Agentic Marketing Academy. It’s Tuesday, September 29th. Four stories and one rumor, and Anthropic just shipped a faster, cheaper Claude that its own announcement says is on the free plan. Let’s go.

If you use Claude, your menu just changed. Anthropic released Sonnet 5.5 yesterday. Sonnet is the everyday model, the middle one between the big Opus and the small one. Anthropic says it runs more than thirty percent faster than the last Sonnet and costs up to thirty percent less per task, because it needs fewer steps to finish a job. Those are Anthropic’s own numbers, not independent tests. Here’s what it means for you. Anthropic says Sonnet is built for well-scoped everyday work, like polished documents, slides, and spreadsheets, and it’s on Claude dot A I, including the free plan, and in Cowork. For jobs that need sustained judgment, Anthropic says Opus 5.5 is still the better pick. So Sonnet for the routine stuff, Opus for the hard calls. TechCrunch adds that a new small model is coming within weeks. Source: Anthropic, September 28th, via TechCrunch.

Now, remember Muse, the Meta agent we’ve walked you through this past week? There’s a safety follow-up, and if you connected your Gmail, you’ll want it. Two security flaws were reported, and both were patched. In the first, researcher Patrick Wardle showed that malware already running on a Mac could hijack the token that controls Muse. Meta’s David Singleton called it a local problem, not a remote one. Wardle disagrees. Per VentureBeat, Meta fixed it within a day. In the second, The Information reports a researcher found, through Meta’s bug bounty program, a flaw that could have exposed the cloud computer where Muse keeps a user’s emails and files. The reports I read don’t say anyone was attacked, and Meta added a clearer safety warning inside the app. Your move: update the Mac app, connect only the accounts you need, and keep approvals on. Source: The Information, via KSL, September 26th, and VentureBeat, on Wardle’s September 21st disclosure.

Next up, if you’ve ever pictured an AI answering your phone, the voice just got better. ElevenLabs launched Eleven v4 yesterday, plus a faster version called Turbo built for live voice agents. It sounds more expressive, speaks more than ninety languages, and can start talking while the AI is still writing its reply, which is what keeps a phone agent from feeling like a robot on hold. ElevenLabs says it’s on the free account, with paid plans from six dollars a month. It can clone a voice from ten seconds of audio, but ElevenLabs says that requires verified consent from the voice’s owner. One catch: if you already made a voice clone, ElevenLabs says you’ll need to retrain it for the new model. Source: ElevenLabs, via TechCrunch and Unite.AI, September 28th.

Quick one if you use Gemini. Google is retiring Gems, the saved custom assistants people built, and replacing them with skills on November 17th. Google is moving your existing Gems over automatically, and they keep working until then. You’ll call a skill by typing a slash in the prompt box, and you can use more than one at a time. One thing to check: 9to5Google notes Gems could be shared by link, so if you share one with a team member or a contractor, open it after the switch and make sure it still works. Source: 9to5Google, September 27th, and TechCrunch, September 28th.

One rumor before we go. TestingCatalog reports early versions of Google’s next model, Gemini 4 Pro, are being tested behind the scenes, and testers on X say it builds cleaner websites and page layouts. It’s based on leaked test outputs, and Google hasn’t confirmed it. If it’s real, the AI that builds your web pages gets better. Nothing to do but watch for it.

So here’s your one thing for today. If you use Muse, update it and trim the accounts it can see. If you don’t, hand Sonnet 5.5 one routine job, like a customer email or a monthly summary, and see if it’s fast and good enough to be your new default.

That’s today’s report. Transcript and every source linked at A I industry report dot com.

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