Muse for Mac is out today! It works across apps, files, calendar, notes, and messages on your computer. You control what it can access. The team is shipping fast. Download at ai.meta.com/muse/download

Last month I wrote about how we can build a positive and safe future for everyone: meta.com/thefutureisforeveryone Every lab has the responsibility and incentive to move at the pace required to train its models safely, and the ability to take its own actions to ensure that happens.

- Labs face significant liability if their models cause harm, so they have a strong incentive to prevent this as well.  Meta delayed shipping Muse for several months to focus on safety and security. We didn't call for everyone else to do this before we would. We just did it as part of our day-to-day work because it was clearly the right thing for people and for us. I'm proud of the security foundations we've built.

- Engaging independent evaluators and advisors is industry best practice. MSL already does this today in several areas because it helps produce better work. Other labs can just do this too. In general, it would be helpful for there to be a larger and more diverse ecosystem of evaluators.

Introducing @Muse, the personal agent that understands your goals and works 24/7 to get things done for you. Your Muse gets its own private computer in the cloud to do work for you. We've built new technology so the Muse Secure VM keeps your content safe.  We want everyone to have access to personal superintelligence, so we're providing Muse for free for up to 100 million tokens per week.

Muse Spark 1.3 is rolling out today with frontier performance almost too cheap to meter. This is the biggest jump we've made so far on coding and agentic work. Try it in Muse Code and our API.  Next up 🍉 and Muse Spark open weights releases coming soon.

Muse Voice Transcribe is MSL's first real-time audio perception model -- rolling out today. SOTA in streaming speech-to-text, it handles speaker diarization, and endpointing natively in a single model.

The model decides when to listen. It waits a little longer on hard words and commits faster on easy ones, using adaptive delay to predict each token and increase accuracy. With adaptive delay, the model is near the pareto front on speed-accuracy tradeoff.