Meta AI's Muse Spark hits 500M

Meta said on May 19 that its Muse Spark model had reached 500 million users globally, adding a new adoption claim to the company’s push to embed AI across its consumer apps. The figure appeared in company social posts and follows Meta’s April 8 launch of Muse Spark as the first model from Meta Superintelligence Labs. Meta has tied the model to its Meta AI assistant and to integrations across Facebook, Instagram, Threads and other products. The company did not disclose how it defines the 500 million figure or the time period it covers. ### Where did the 500 million figure come from? Meta said in social posts on May 19 that Muse Spark had reached 500,000,000 users worldwide. The company did not publish a separate press release alongside the claim, and Reuters could not identify a public methodology describing whether the figure referred to total users, monthly active users, weekly users or another internal measure. (about.fb.com) The May 19 claim builds on earlier Meta disclosures about Meta AI usage. In September 2024, Meta said more than 400 million people were using Meta AI monthly and 185 million were using it each week across its products. In July 2024, the company said Meta AI was on track to reach almost 500 million monthly active users by the end of that year. ### What exactly is Muse Spark inside Meta’s products? (about.fb.com) Meta introduced Muse Spark on April 8 as “MSL’s first model,” saying it was purpose-built for Meta’s own products rather than released first as a broadly open model. The company said the model initially powered the Meta AI app and website and would roll out to WhatsApp, Instagram, Facebook, Messenger and AI glasses in the following weeks. (about.fb.com) Meta updated that announcement on May 12, saying Muse Spark was already being used for faster voice responses in the Meta AI app, live AI features, shopping tools and new experiences across its glasses and apps. The company said the model was starting to bring the same intelligence to Meta AI across WhatsApp, Instagram, Facebook, Messenger and Threads, including in search bars, group chats and posts. (about.fb.com) ### Why is Meta able to post a number this large so quickly? Meta’s distribution comes from products it already operates at global scale. In its April 8 and May 12 product posts, the company said Muse Spark was designed to work across Meta’s family of apps and added that the new Meta AI was “reaching billions of people across our apps.” (about.fb.com) That reach is different from the stand-alone chatbot model used by some rivals. Meta has been inserting AI features into existing surfaces such as search bars, direct messages, group chats, shopping tools and smart glasses, rather than relying only on a separate destination app. The company said on April 8 that Muse Spark would unlock features drawing on recommendations and content shared across Instagram, Facebook and Threads. (about.fb.com) ### What remains unclear about the claim? Meta did not say on May 19 whether the 500 million figure represented people who directly used Muse Spark, people exposed to Meta AI features powered by the model, or a cumulative count across products. The company also did not say whether the figure was global, monthly or tied to a launch-to-date window. (about.fb.com) The absence of a definition makes direct comparisons with earlier Meta AI disclosures difficult. Meta’s prior public usage updates used monthly and weekly metrics for Meta AI, while the new Muse Spark claim, as publicly presented, used only “users.” ### What comes next in the rollout? Meta said on May 12 that Muse Spark was starting a gradual rollout on Ray-Ban Meta and Oakley Meta glasses in the United States and Canada over the next few weeks, with Meta Ray-Ban Display to follow in the summer. (about.fb.com) The company also said it would offer the model in private-preview API access to select partners. (about.fb.com) In the same update, Meta said new Meta AI features would continue expanding to more countries and more Meta surfaces. The next public checkpoints are likely to come through additional product updates on Meta’s newsroom and company posts tied to WhatsApp, Instagram, Facebook, Messenger, Threads and its AI glasses lineup. (about.fb.com)