--- title: Meta’s Muse Spark is here – and it’s closed source description: Meta Superintelligence Labs has released Muse Spark, its first AI model built from scratch over nine months under chief AI officer Alexandr Wang. The natively... canonical: https://daily.dev/posts/meta-s-muse-spark-is-here-and-it-s-closed-source-q3ktxu1ul twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Meta’s Muse Spark is here – and it’s closed source | daily.dev og:description: Meta Superintelligence Labs has released Muse Spark, its first AI model built from scratch over nine months under chief AI officer Alexandr Wang. The natively... og:url: https://daily.dev/posts/meta-s-muse-spark-is-here-and-it-s-closed-source-q3ktxu1ul og:image: https://api.daily.dev/og/posts/q3kTXU1uL.png og:image:alt: Meta’s Muse Spark is here – and it’s closed source og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Meta’s Muse Spark is here – and it’s closed source **[The Next Web](https://daily.dev/sources/tnw)** · 7 min read · 0 upvotes · 0 comments ## Summary Meta Superintelligence Labs has released Muse Spark, its first AI model built from scratch over nine months under chief AI officer Alexandr Wang. The natively multimodal model introduces a 'Contemplating' reasoning mode using parallel sub-agents and a 'thought compression' training technique that claims 10x compute efficiency over Llama 4 Maverick. Benchmarks show a mixed picture: Muse Spark ranks fourth on the Artificial Analysis Intelligence Index, trailing Gemini 3.1 Pro, GPT-5.4, and Claude Opus 4.6 on abstract reasoning (ARC AGI 2: 42.5 vs rivals' ~76), but leads on HealthBench Hard (42.8%) and chart understanding. Notably, Muse Spark is closed source — a significant departure from Meta's Llama open-source heritage — which Meta frames as temporary. The model now powers Meta AI across the company's platforms, with dedicated shopping and health modes leveraging Meta's platform data advantages. The release is the first product output from Meta's $14.3 billion Scale AI investment and its broader $115–135 billion 2026 capex plan. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Meta’s Muse Spark: a smaller, faster AI model for broad app deployment](https://daily.dev/posts/meta-s-muse-spark-a-smaller-faster-ai-model-for-broad-app-deployment-rxhf7mbsh) · InfoWorld · 2 upvotes · 0 comments - [Meta enters the crowded AI coding battle with Muse Spark 1.1](https://daily.dev/posts/meta-enters-the-crowded-ai-coding-battle-with-muse-spark-1-1-wtfjrleyt) · TechCrunch · 1 upvotes · 0 comments - [Introducing Muse Spark 1.1](https://daily.dev/posts/introducing-muse-spark-1-1-6ixvwquql) · AI at Meta · 15 upvotes · 1 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#llm](https://daily.dev/tags/llm), [#multimodal](https://daily.dev/tags/multimodal) [View this post on daily.dev](https://daily.dev/posts/meta-s-muse-spark-is-here-and-it-s-closed-source-q3ktxu1ul) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Meta’s Muse Spark is here – and it’s closed source","url":"https://daily.dev/posts/meta-s-muse-spark-is-here-and-it-s-closed-source-q3ktxu1ul","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/meta-s-muse-spark-is-here-and-it-s-closed-source-q3ktxu1ul"},"datePublished":"2026-04-08T20:17:35.720Z","dateModified":"2026-04-08T23:13:39.266Z","description":"Meta Superintelligence Labs has released Muse Spark, its first AI model built from scratch over nine months under chief AI officer Alexandr Wang. 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