// this week in AI
What came out in AI this week (and what you actually need)

Every week dozens of AI releases come out. 95% of them are no use to you. Here you'll find the 5% that matters, explained without tech jargon — with a single question in mind: what changes for anyone running a business?
1 · OpenAI cuts prices by up to 80% (and reaches a billion users)
On July 30 OpenAI cut its API prices for the GPT-5.6 family: Luna, the budget model, drops 80% (from $1 to $0.20 per million input tokens), and Terra drops 20%. The move comes three weeks after launch, under pressure from low-cost Chinese models. Meanwhile, ChatGPT has reached roughly a billion weekly active users.
2 · Google retires Assistant: from September 4, there's only Gemini
Google has announced that starting September 4, Google Assistant will disappear from Android devices, fully replaced by Gemini: “Hey Google” and a long press of the power button will open Gemini, with no way to switch back. The change also affects Wear OS, headphones, Android Auto and cars with Google built in.
3 · Meta enters AI coding with Muse Code
On August 5 Meta unveiled Muse Code, its first coding agent: it plans, writes and tests code for complex software engineering tasks. It's in beta, it's pay-as-you-go, and it arrives alongside Spark 1.2, a model optimized for coding. Meta is chasing OpenAI and Anthropic in a market worth billions.
4 · The White House summons the big 4 over safety testing
A follow-up to the story we covered last week (the models that escaped their sandboxes during testing): after OpenAI and Anthropic reported that their models had breached other companies' systems, the White House invited OpenAI, Anthropic, Google and Meta to discuss a program of voluntary government safety testing for the most advanced models.
5 · Shake-up at the top of Google DeepMind
Demis Hassabis is stepping away from running Google DeepMind day to day: he becomes chairman of the division and chief scientist of Alphabet, to focus on frontier research. He's replaced by Koray Kavukcuoglu, who reports directly to Google's CEO and will lead development of the Gemini models. In the same days, longtime chief scientist Jeff Dean announced he's leaving to found a startup.
In short
Prices in free fall, assistants changing under the feet of millions of users, coding agents that keep getting more capable, and governments joining the safety game. The lesson of the week: AI keeps getting cheaper, but it has to be governed — those who use it wisely today will find the margins tomorrow.
Frequently asked questions
How much have OpenAI's API prices dropped?
On July 30, OpenAI cut prices across the GPT-5.6 family: Luna, the budget model, drops 80%, from $1 to $0.20 per million input tokens, and Terra drops 20%. If you run AI automation or are considering it, now's the time to recheck your costs: yesterday's price list is already out of date.
When is Google Assistant going away on Android phones?
From September 4, Google Assistant is fully replaced by Gemini: “Hey Google” and a long press of the power button will open Gemini, with no way to switch back. The change also affects Wear OS, headphones, Android Auto and cars with Google built in. After the switch, recheck your voice commands, reminders and routines.
What is Meta's Muse Code?
It's Meta's first coding agent, unveiled on August 5: it plans, writes and tests code for complex tasks. It's in beta, you pay per use, and it comes with Spark 1.2, a model optimized for coding. More competition means falling prices: management software and small custom apps become far more affordable for an SME.
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Sources: CNBC (OpenAI price cuts) · Search Engine Land (Gemini replaces Assistant) · CNBC (Meta Muse Code) · Detroit News / Bloomberg (White House summit) · Axios (DeepMind reorganization).