--- title: "Mark Zuckerberg Posted on Elon Musk's X for the First Time Since 2023 to Promote Meta's Muse AI—MKBHD Explains How to Opt Out" type: "News" locale: "en" url: "https://longbridge.com/en/news/292275185.md" description: "Meta CEO Mark Zuckerberg returned to X after three years to launch Muse Spark 1.1, an agentic AI model. The post drew reactions from Elon Musk and X executives. Meanwhile, MKBHD highlighted a new Instagram Muse AI feature that automatically opted in public accounts, providing instructions for users to opt out. Meta shares rose 4.70% to $631.48 on the news." datetime: "2026-07-10T03:58:40.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/292275185.md) - [en](https://longbridge.com/en/news/292275185.md) - [zh-HK](https://longbridge.com/zh-HK/news/292275185.md) --- # Mark Zuckerberg Posted on Elon Musk's X for the First Time Since 2023 to Promote Meta's Muse AI—MKBHD Explains How to Opt Out On Thursday, **Meta Platforms Inc.** (NASDAQ:META) CEO **Mark Zuckerberg** returned to **X** after nearly three years to unveil the company’s latest AI model. ## Mark **Zuckerberg Returns To X** Zuckerberg broke his long silence on X to introduce **Muse Spark 1.1**, Meta’s newest artificial intelligence model designed for agentic AI tasks. In his post, Zuckerberg said Muse Spark 1.1 delivers improved coding, tool use, computer-use capabilities and multimodal reasoning. > (1) Today we're releasing Muse Spark 1.1 — a strong agentic and coding model at a very low price. It's available through our new Meta Model API and in Meta AI. > > — Mark Zuckerberg (@finkd) July 9, 2026 Meta described the model as the first major release from its **Meta Superintelligence Labs**, calling it a significant upgrade over the original Muse Spark. According to the company, the AI is built to coordinate multiple AI agents working in parallel, manage long-running tasks, retain context across extended sessions and determine when to automate workflows or interact directly with computer interfaces. The release follows this week’s launch of **Muse Image**. **Read Also: Meta's Most Important AI Customer Might Be Meta** ## **Elon Musk And X Executive React To Zuckerberg’s Return** Zuckerberg’s post quickly drew playful responses from rivals. **Nikita Bier**, a product executive at **Elon Musk’s X**, replied, “Hello Mark, would you like me to enable Creator Monetization on your account,” joking about Zuckerberg’s years-long absence from the platform. > Hello Mark, would you like me to enable Creator Monetization on your account > > — Nikita Bier (@nikitabier) July 9, 2026 Musk also chimed in with a brief “Jinx,” likely a nod to the Wednesday announcement about **xAI’s Grok 4.5** model, which also focuses on coding, research and complex work tasks. > Jinx > > — Elon Musk (@elonmusk) July 9, 2026 ## **MKBHD Flags Instagram’s New Muse AI Feature** Meanwhile, popular tech YouTuber **Marques Brownlee**, better known as **MKBHD**, highlighted a Meta AI feature rolling out on Instagram. “Instagram decided to roll out a new ‘Muse AI’ feature… Then they opted in EVERYONE with a public account,” he wrote on X. Brownlee also shared instructions for opting out by opening the Instagram profile page, tapping the three-line menu, navigating to “Sharing and reuse” and turning off the settings for both **Posts** and **Reels**. > Instagram decided to roll out a new "Muse AI" feature, that lets users create AI images based on people’s Instagram photos. > > Then they opted in EVERYONE with a public account > > To opt out: > Click your profile picture > 3 bars in the top right > scroll down to "Sharing and reuse" > Toggle… pic.twitter.com/eWb64iOP7D > > — Marques Brownlee (@MKBHD) July 10, 2026 **Price Action:** Meta shares closed Thursday up 4.70% at $631.48 and gained another 1.25% to $639.36 in after-hours trading, according to Benzinga Pro. According to **Benzinga Edge Stock Rankings**, Meta ranks in the 88th percentile for Growth, although the stock has lagged over the medium and long term while showing short-term strength. **_Disclaimer_:** _This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors_. **Read Also: Meta Faces Growing Pressure From Trump Administration To Submit Advanced AI Models For Federal Testing: Report** _Photo courtesy: Shutterstock_ ### Related Stocks - [META.US](https://longbridge.com/en/quote/META.US.md) - [METD.US](https://longbridge.com/en/quote/METD.US.md) - [FBL.US](https://longbridge.com/en/quote/FBL.US.md) - [METU.US](https://longbridge.com/en/quote/METU.US.md) - [METW.US](https://longbridge.com/en/quote/METW.US.md) - [FBY.US](https://longbridge.com/en/quote/FBY.US.md) - [FBYY.US](https://longbridge.com/en/quote/FBYY.US.md) - [MAGX.US](https://longbridge.com/en/quote/MAGX.US.md) - [SSTK.US](https://longbridge.com/en/quote/SSTK.US.md) ## Related News & Research - [Meta jumps into AI coding market in effort to chase Anthropic and OpenAI](https://longbridge.com/en/news/292212124.md) - [META Stock Pops as Meta Platforms Launches AI Image Model](https://longbridge.com/en/news/291976054.md) - [Meta expands generative AI tools with Muse Image rollout](https://longbridge.com/en/news/291965159.md) - [Meta Stock in Focus After $2 Billion AI Deal Falls Apart](https://longbridge.com/en/news/292325334.md) - [Key facts: Erste Upgrades Meta; Alberta AI Center; CEO Questions Cloud](https://longbridge.com/en/news/292161195.md)