Muse Spark 1.3
Other ids: muse-spark-1.2, muse-spark-1.1, muse-spark-1.3-contributor, muse-spark-1.2-contributor. OpenAI-SDK-compatible API (public preview, self-serve). Contributor tier data terms not verified. Knowledge cutoff not published.
- Context window
- 1,000,000 tokens
- Max output
- 200,000 tokens
- Input
- text, image, video, pdf
- Output
- text
- License
- proprietary
- Pricing
- input: $1.25 · cached input: $0.15 · output: $4.25 (per 1M tokens (USD), standard tier; "contributor" tier muse-spark-1.3-contributor is $0.10/$0.002 cached/$0.20) source
- Verified
- 2026-09-29
How to call it
| Provider | Model id | Endpoint / URL | Docs |
|---|---|---|---|
| Meta Model API | muse-spark-1.3 | https://api.meta.ai/v1/chat/completions | docs |
| OpenRouter | meta/muse-spark-1.3 | openrouter.ai/meta/muse-spark-1.3 | — |
| Web app | — | meta.ai | — |
Notable capabilities (4)
- Closed-weights successor to Llama: Proprietary model from Meta Superintelligence Labs; Muse Spark replaced Llama in Meta AI in April 2026. source
- Native video + document perception: Natively multimodal input (video, images, documents, text) with 1M context and 200K max output. source
- Long-horizon multi-agent tuning: 1.3 tuned for long-running, multi-agent agentic builds; also powers Meta's Muse Code. source
- Contributor pricing tier: Separate -contributor model ids priced ~90% lower (data-sharing tier). source
Meta's current flagship (closed) for agentic coding and multimodal (video/doc) understanding.
curl https://api.meta.ai/v1/chat/completions -H "Authorization: Bearer $MODEL_API_KEY" -H "Content-Type: application/json" \
-d '{"model":"muse-spark-1.3","messages":[{"role":"user","content":"Hello"}]}'
Sources: https://dev.meta.ai/models/muse-spark/ , https://dev.meta.ai/docs/ , https://research.meta.ai/blog/introducing-muse-spark-1-3
Other Meta models
Muse Voice Transcribe 1.0 · Muse Glimmer 30B · Omnilingual ASR · Llama 4 Maverick (17B-128E) · Llama 4 Scout (17B-16E)