Meta
Muse Spark 1.3
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It improves long-horizon agent collaboration, instruction following, and coding efficiency relative to Muse Spark 1.2.
Model facts
- Context window
- 1.05M tokens
- Maximum output
- 944K tokens
- Cheapest paid input
- $1.25 per 1M tokens
- Cheapest paid output
- $4.25 per 1M tokens
- Open weights
- no
- Providers
- 8
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, audio, video, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| max | 62.1 | 76.3 | not measured | not measured |
| xhigh | 60.8 | 76.5 | not measured | 110.8 |
Observed price history
- 2026-09-03: $1.25 input / $4.25 output per 1M tokens
API providers
- DevPass (LLM Gateway) — model id muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- EmpirioLabs AI — model id muse-spark-1-3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- Kilo Gateway — model id meta/muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- LLM Gateway (Meta) — model id meta/muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- Meta — model id muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- NanoGPT — model id meta/muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- OpenRouter — model id meta/muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id meta/muse-spark-1.3; $1.25 input / $4.25 output per 1M tokens; provider documentation