Compatibility matrix

Operating systems

Platform	Status
Windows	Supported
macOS	Supported
Linux	Not currently an official desktop release target

Some capabilities depend on system permissions, browsers, and command environments. Behavior can vary with OS version.

Model APIs

API	Streaming text	Tool calling	Image input	Thinking content
OpenAI Responses	Supported	Supported	Model-dependent	Model-dependent
OpenAI Chat Completions	Supported	Endpoint-dependent	Endpoint-dependent	Endpoint-dependent
Anthropic	Supported	Supported	Model-dependent	Model-dependent
Gemini	Supported	Supported	Model-dependent	Model-dependent

OpenAI compatibility means the corresponding API is implemented, not that every OpenAI parameter is supported. Choose the API the service actually implements.

Files and attachments

Category	Common formats
Images	PNG, JPEG, WebP, GIF
Documents	PDF, DOCX, RTF, EPUB
Spreadsheets	XLSX, ODS
Presentations	PPTX, ODP
Text and code	Common UTF-8 text and code formats

Executables, installers, and disk images cannot be uploaded as ordinary attachments. Password-protected, damaged, or scanned documents may lack extractable content.

Default limits are 25 MB (approximately 25 MiB) per file, up to 10 files and 50 MB (approximately 50 MiB) per message. Image inputs also have image-specific limits.

Extensions

Type	Support
KeenKind Skill	Native
KeenKind plugin	Native
MCP	stdio and HTTP
Pi tool extensions	Partial compatibility
Pi UI, themes, and providers	Incompatible

Built-in browser

The Chromium-based browser supports opening, reading, clicking, typing, scrolling, and screenshots. User interaction is typically needed for:

• CAPTCHAs and QR-code sign-in.
• Passwords, payments, and other sensitive fields.
• Actions that explicitly require human confirmation.
• Sites blocking automation or frequent operations.

Website updates can change control recognition and automation behavior. Check the current page before important actions.