Muse Spark 1.1

Meta's hosted frontier reasoning model with a 1M-token context window, built for agentic and computer-use workflows, launched with the Meta Model API.

Meta · Frontier/foundation models · model

Published in Feed

Overview

Meta released Muse Spark 1.1 on July 9, 2026, a multimodal reasoning model built for agentic tasks with a 1-million-token context window with active context management. Unlike Llama, which Meta positions as open-weight models for local use and fine-tuning, Muse Spark is a hosted, high-performance model aimed at computer-use workflows that span multiple applications, adapt to evolving requirements, and navigate unfamiliar interfaces; independent benchmark coverage put its reasoning, coding, and instruction-following scores on par with GPT-5.5. Meta paired the release with a public preview of the Meta Model API (OpenAI-compatible interface, $1.25/million input and $4.25/million output tokens, $20 in free credits) and made the model available in "Thinking" mode in the Meta AI app and on meta.ai. Muse Spark 1.1 also underpins Meta's Muse personal agent and Muse Image; Meta has since shipped a coding-focused Muse Spark 1.2 (with the companion Muse Code, announced August 5, 2026) and a subsequent Muse Spark 1.3.

This is a sourced directory entry. Features and capabilities are reported in the linked sources; this entry does not document independent Aymorphic testing.

Key features

  • 1,000,000-token context window with active context management
  • Strong tool use, computer-use, coding, and multimodal understanding per Meta's release benchmarks
  • Zero-shot generalization to new tools and custom skills; multi-agent orchestration support
  • Meta Model API public preview with OpenAI-compatible interface
  • Powers Meta's Muse personal agent and integrates with Muse Image for joint planning
  • Superseded within weeks by coding-focused Muse Spark 1.2 (with Muse Code) and Muse Spark 1.3

Use cases

  • Multi-app computer-use agents (booking, form-filling, research)
  • Long-context document and multi-step reasoning tasks
  • Developer access to a frontier-class hosted model via API
  • Backbone model for Meta's Muse and Muse Image products

Pricing

Meta Model API: $1.25/million input tokens, $4.25/million output tokens, with $20 in free credits; also available free in "Thinking" mode in the Meta AI app and on meta.ai.

Pricing reflects the source record and may change. Confirm current terms with the provider.

Dates and sources

Released
9 Jul 2026
Record updated
23 Sept 2026
Record last checked
23 Sept 2026

Explore the Feed

Other entries filed under frontier/foundation models; inclusion does not imply equivalent features.

  • Muse Wonder

    Meta's most capable Muse models, with active memory and long-goal focus for agents, 1M context and $4/$20 per million tokens.

  • Rho-1

    Reka's 19B omni-reasoning model that handles text, images, video and robot actions in one network, in research preview.

  • Amazon Nova 3

    Amazon's third-generation Nova frontier model family, unveiled at an AWS keynote with a 1M-token context window and a dedicated agentic tool-use variant.

Browse the Feed