Muse Spark 1.3
Language modelMuse Spark 1.3 is trained for agentic workflows and optimized for competitive coding performance.
Overview
Meta · 04Spark, front
Muse Spark 1.3
Muse Spark 1.3 is trained for agentic workflows and optimized for competitive coding performance.
- Cost
- $1.25 in
- Context
- 1M
- Input / output
- $1.25 / $4.25
- Max output
- —
- Knows up to
- —
- Released
- 2 Sep 2026
Meta hasn't published a system or model card we can summarize. Everything here comes from its docs and pricing page.
muse-spark-1.3- Input / output per 1M
- $1.25 / $4.25
- Context window
- 1M
- Max output
- —
- Knows up to
- —
- Reasoning
- Always on; reasoning_effort minimal to xhigh, plus max (Standard tier only)
- Weights
- Closed