FrameworkDesign toolsOpen Source
OpenPencil
by OpenPencil
Bring-your-own model support · Framework · Free open-source
Decision note
OpenPencil is an open-source agent framework for visual design and prototype workflows, built by OpenPencil (released 2026-02). OpenPencil's verified model list is still being expanded, so this page emphasizes bring-your-own model access, runtime shape, pricing, and deployment control. It's free and open source. Developers import it as a library to build custom agents, wire model calls to tools, and standardize LLM ops across internal automation.
Overview
Open-source AI-native vector design editor with MCP, headless CLI, Figma-compatible files, and agent skills for coding agents to inspect, modify, and export designs.
Best LLMs for this agent
No model recommendation rows are attached yet.
Pricing and Provider Comparison
Free and open source
Featured Model Specs
No verified underlying model rows yet.
Model Compatibility Matrix
No structured agent-model rows linked yet beyond seed scaffolding.
Underlying Models
No verified model links are attached to this agent yet.
Capabilities
| Feature | Supported |
|---|---|
| Chat | Yes |
| Agent mode | Yes |
| Multi-file edit | Yes |
| Autocomplete | No |
| Terminal | Yes |
| Code review | No |
| Git integration | No |
| Deploy integration | Yes |
| Local models | Yes |
| Bring your own key | Yes |
| MCP support | Yes |
| Offline mode | No |
| IP indemnity | No |
| SSO | No |
| On-prem | Yes |
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Last reviewed: 2026-06-30. Data sourced from agent documentation and provider pages.