Sync
syncSync has one model in the ModelRunner catalog: Sync Lipsync 2, a Video-to-Video endpoint, priced at $0.05 per second of video — lip-sync a talking video to a new audio track.
1 public model — runnable in a free playground, through the REST API and JavaScript SDK, or from an AI assistant over MCP.
Sync models & pricing
What you can build with Sync models
- Lip-sync a talking video to a new audio track Sync Lipsync 2
- Dub videos into other languages with matching mouth movement Sync Lipsync 2
- Fix or replace dialogue in recorded footage Sync Lipsync 2
Browse by capability
Use Sync models from Claude & Cursor
Connect the ModelRunner MCP server once and your AI assistant can run every Sync model on this page as a tool — authorized via OAuth, results returned as hosted URLs in the conversation.
Claude Code
claude mcp add --transport http modelrunner https://mcp.modelrunner.run/mcpFrequently asked questions
What Sync models can I run on ModelRunner?
The catalog has 1 public Sync model: Sync Lipsync 2. It covers video-to-video. It has its own page with a free playground, the full input schema, and copy-paste code.
How much do Sync models cost?
Pay-per-use, with no subscription: the one Sync model billed per second of video costs $0.05, and every page publishes its own rate — some are tiered, so a lower resolution or a shorter clip costs less per run. You buy credits and pay only for what you generate.
How do I call a Sync model from the API?
POST to https://queue.modelrunner.run/sync/lipsync/v2 with an Authorization: Key header and the input fields as the top-level JSON body (no wrapper object), then poll the returned status_url and fetch the result from response_url. The JavaScript SDK (@modelrunner/client) wraps that in a single subscribe() call, which is the one place an { input } object is used.
Can I run Sync model from Claude or Cursor?
Yes. Connect the ModelRunner MCP server (https://mcp.modelrunner.run/mcp) once and Sync's model becomes a tool your assistant can call with run_model — authorized over OAuth 2.1, so no API key goes into a config file. Results come back as hosted URLs in the conversation.
More on ModelRunner
Browse the full model catalog, compare live per-configuration rates on the pricing page, see curated sets on explore, or view every model creator.