Completions offers a unified API for accessing premium AI models from Anthropic, OpenAI, Google, and xAI without cost or rate limits. Key features include:
- Models: Supports Claude Opus 4.6, GPT-5.2, Gemini 3.1 Pro, and over 15 others, with model IDs like claude-opus-4.6 and gpt-5.2.
- API Compatibility: Fully OpenAI-compatible, allowing integration with existing OpenAI SDKs, Claude Code CLI, and HTTP clients by changing the base URL and API key.
- Use Cases: Suitable for developers building AI applications, requiring no credit card or email verification for sign-up.
- Setup: Includes a desktop proxy for seamless use with Claude Code, enabling tool support and model switching. The service emphasizes free access with no restrictions, though specifics on latency, speed, or SLAs are not detailed.

