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.
Details
| Field | Value |
|---|---|
| id | muse-spark-1.3 |
| family | muse |
| modality | text+image+video+pdf+audio->text |
| context_length | 1048576 |
| max_output_tokens | 131072 |
| release_date | 2026-09-02 |
| is_open_weights | no |
| supports_tool_call | yes |
| supports_reasoning | yes |
| supports_structured_output | yes |
| supports_attachment | yes |
| input_modalities | text, image, video, pdf, audio |
| output_modalities | text |