Meta releases Muse Spark 1.1 and opens the Meta Model API public preview
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. Muse Image (agentic image generation) arrived two days earlier.
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.
Changelog
- 2026-09-29: created
Related events
- Meta Superintelligence Labs debuts Muse Spark, its first model ★★★★
- Meta launches Muse Code terminal coding agent powered by Muse Spark 1.2 ★★★
- Meta launches Muse Voice Transcribe, its first real-time speech model on the Meta Model API ★★★
Sources (3)
- officialMeta AI - Introducing Muse Spark 1.1
- officialMeta AI - Introducing Muse Image and Muse Video
- pressexplainx.ai - Muse Spark 1.1 and Meta Model API
id: 2026-07-09-meta-muse-spark-1-1-model-api · updated 2026-09-29 · open in the interactive timeline