OpenCraftmeta · chat model
Try Muse Spark Open onlinenew
meta/muse-spark-openAdded to OpenRouter: 15 Oct 2026
First seen here: · Specs updated:
Use Muse Spark Open in your browser. Explore pricing and capabilities below, or start a chat in OpenCraft.
Input price$1.25per M tokenscheaper than 21% of chat models
Output price$4.25per M tokenscheaper than 28% of chat models
Cache read$0.15per M tokens
Context window1Mtokensof the largest window in the catalog (10M)
Muse Spark Open pricing: what a turn costs
Estimates from the published token rates above — real turns vary with tool calls and transcript length.
- Quick answer2K tokens in, 600 out$0.0050
- 10-slide deck build60K tokens in, 9K out$0.113
- 150-page PDF read200K tokens in, 4K out$0.267
Specs and listed prices from OpenRouter. Actual usage cost depends on the serving provider.
How to use Muse Spark Open
- Select “Try Muse Spark Open online” to open OpenCraft with this model selected.
- Sign in or create an account if prompted.
- Type a question or describe a task, then send your message.
To compare answers, start a separate chat with another model and use the same prompt.
Muse Spark Open capabilities
tool-usevisionreasoning
text, image, video, file, audio in → text out
Create with OpenCraft
See example outputs and find a workflow for your next project.