API
xAI API
xAI API provides programmatic access to Grok models through OpenAI-compatible REST endpoints and xAI's gRPC interface, with text, tool, media, file, and batch APIs.
Research comparison
xAI API vs OpenAI API
xAI API and OpenAI API both expose Responses-style and OpenAI-compatible developer workflows, with different model catalogs, server-side tools, media endpoints, and transport options.
Verified Oct 3, 202629 evidence sources
API
OpenAI API
OpenAI API provides programmatic access to OpenAI models through the Responses API, Realtime API, batch processing, and other model and media endpoints.
Structured facts
Entity profiles
These fields come from each entity record and are kept separate from the curated comparison notes below.
xAI API
- Entity type
- API
- Status
- Active
- Verified
- Oct 3, 2026
- Styles
- Rest, Grpc, Sdk
- Authentication
- Bearer Token
- SDKs
- Python
- OpenAI compatible
- Yes
- Pricing
- Usage Based
OpenAI API
- Entity type
- API
- Status
- Active
- Verified
- Oct 3, 2026
- Styles
- Rest, Websocket, Sdk
- Authentication
- Bearer Token
- SDKs
- JavaScript, TypeScript, Python, C#, Java, Go, Ruby
- OpenAI compatible
- Yes
- Pricing
- Usage Based
Editorial comparison
Key differences
These rows are curated comparison data, distinct from automatically aggregated graph relationships.
Primary model family
xAI API
Grok
OpenAI API
OpenAI GPT and related models
REST compatibility
xAI API
OpenAI-compatible REST API
OpenAI API
First-party OpenAI API
Additional transport
xAI API
xAI also documents a gRPC API
OpenAI API
Realtime API supports realtime application workflows
Server-side search
xAI API
Web search and X search
OpenAI API
OpenAI web-search and other tool surfaces
Knowledge graph
Connected models and APIs
OpenAI API
APIs
No API links in the current graph.