Meta: Muse Spark 1.2 API
Muse Spark 1.2 is the previous version of Meta's model for agentic and coding work, with image, video, audio and PDF input and a 1M-token context window.
- Context window: 1,048,576 tokens
- Input: text, image, video, file, audio
- Output: text
- Reasoning: Supported
- Tool calling: Supported
- File input: Supported
- Released: 2026-08-05
Frequently Asked Questions
What is the context window of Muse Spark 1.2?
Muse Spark 1.2 supports a context window of up to 1,048,576 tokens.
Does Muse Spark 1.2 support function calling?
Yes. Muse Spark 1.2 supports tool / function calling.
Does Muse Spark 1.2 support reasoning?
Yes. Muse Spark 1.2 is a reasoning-capable model.