Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...
Meta: Muse Spark 1.3 — Meta. Context window 1,048,576 tokens. API pricing (per 1M tokens): Input $1.25, Output $4.25. License: Proprietary. LMArena 1,490.
| Provider | Meta |
|---|---|
| API model ID | meta/muse-spark-1.3 |
| Tier | Frontier |
| Context window | 1,048,576 tokens |
| Max output | 943,718 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $1.25 |
| API pricing (per 1M tokens) · Output | $4.25 |
| LMArena | 1,490 (muse-spark-1.3-max) |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
Compare in the full catalog