# LLM APIs

> Serve deterministic OpenAI-, Anthropic-, Gemini-, Cohere-, and Ollama-shaped responses from fixtures.

- Canonical URL: https://dotmock.com/docs/features/llm-mocking
- Capability status: Available
- Last verified: 2026-07-24

## Prerequisites
- A DotMock workspace you can access
- The API ID in $API_ID and its published runtime URL in $MOCK_URL when the example calls the mock

## In this guide
- Create an LLM workspace
- Change the base URL, not the client behavior
- Fixtures define the behavior
- Return the outcome your app must handle
- Test with the built-in conversation panel

## Verified boundaries
- The generic CLI `dotmock test --kind llm` path remains planned until template conformance is complete.

Read the canonical guide for its complete examples and expected results: https://dotmock.com/docs/features/llm-mocking