Muse Spark 1.3
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows.
Specifications
| Lab | Meta |
|---|---|
| Context window | 1M tokens |
| Input price | $1.25/1M |
| Output price | $4.25/1M |
| Release | Sep 2026 |
Strengths
- Million-token context for extended agent sessions
- Multimodal input across images, video, audio, and files
- Designed for multi-agent orchestration and tool use
- Strong fit for long-running coding workflows
Weaknesses
- New listing with limited independent benchmark coverage
- Premium pricing for high-volume workloads
Best for
- Long-horizon coding agents
- Multimodal document and codebase analysis
- Multi-agent tool orchestration
In Depth: Muse Spark 1.3
Summary
Muse Spark 1.3 is an AI model from Meta.
Released in Sep 2026. It takes text input and produces text output, with a context window of 1M tokens. Input pricing is $1.25 per 1M tokens and output is $4.25 per 1M tokens on OpenRouter.