Meta releases Muse Spark 1.1 and opens the Meta Model API public preview
Confirmed
The takeaway
On 2026-07-09 Meta released Muse Spark 1.1, a multimodal reasoning model tuned for agentic tasks (tool and computer use, coding), with a 1M-token context, and launched a public preview of the Meta Model API - Meta’s first broadly available developer API for its frontier models.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- 3 of 5
- Last verified
- 29 September 2026
Your AI and this story
- GPT-6 Astra70 days after its cutoff
- Claude Opus 5.59 days after its cutoff
- Gemini 4 Hydrogen100 days after its cutoff
- Grok 4.739 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 9 days before it.
Key facts
- Muse Spark 1.1 released 2026-07-09
- Context window: 1 million tokens; multimodal input (images, video, PDFs)
- Major gains claimed in tool use, computer use, coding and multimodal understanding (no numeric scores in the post)
- Meta Model API public preview at developer.meta.com; OpenAI-compatible package, parallel tool calling, structured output
- Launch partners include Replit, Cline, Box and the OpenClaw Foundation
- Also powers a ‘Thinking’ mode in the Meta AI app and meta.ai
- Muse Image (agentic image generation with search, code tools and self-refinement) launched 2026-07-07
What happened
Three months after Muse Spark, MSL shipped Muse Spark 1.1, pitched as a multimodal reasoning model built for agentic work, and opened the Meta Model API in public preview. The API is OpenAI-compatible and supports parallel tool calling and structured output. Replit CEO Amjad Masad called it “a complete agentic foundation” with a million-token context and full multimodal support.
Why it matters
Meta, historically a distributor of free Llama weights, now sells API access to its frontier model and competes directly with OpenAI, Anthropic and Google for developers building agents.
Sources
3 sources from 2 sites. Numbers match the chips in the text.
3 sources: 2 primary, 1 press
Primary
- Meta AI - Introducing Muse Spark 1.1ai.meta.com, official
- Meta AI - Introducing Muse Image and Muse Videoai.meta.com, official
Press
- explainx.ai - Muse Spark 1.1 and Meta Model APIexplainx.ai, press
Changes
- Filed