# Together AI — Meta Muse Spark Open is live on Together AI

- Company: Together AI (together.ai)
- Announced: 2026-10-15
- Category: availability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://www.together.ai/blog/meta-muse-spark-open
- Record: https://forck.live/items/23053-meta-muse-spark-open-is-live-on-together-ai
- Subject: Inference platform
- Open weights: yes
- Models affected: Muse Spark Open
- Context window: 1M-token context window
- Pricing: Pricing is $1.25 per 1M input tokens, $4.25 per 1M output tokens, and $0.15 per 1M cached input tokens.

Together AI has made Meta's Muse Spark Open, an open-weight model for agentic coding, available on its platform with a 1M-token context window on serverless and dedicated infrastructure. The model supports long-horizon autonomy, computer use, multimodal input, and intent commentary. Pricing is set at $1.25 per 1M input tokens, $4.25 per 1M output tokens, and $0.15 per 1M cached input tokens.

## Evidence

Verbatim from https://www.together.ai/blog/meta-muse-spark-open:

> Muse Spark Open, Meta's open-weight model for agentic coding, is live on Together AI with a 1M-token context window on serverless and dedicated infrastructure.

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