Compose AI vs New API
Side-by-side comparison · Updated October 2026
| Description | Compose AI is a state-of-the-art writing tool powered by artificial intelligence that enhances your writing workflow by generating text, autocompleting sentences, and speeding up your overall writing process. Whether you're drafting emails, creating detailed documents, or chatting with colleagues, Compose AI integrates seamlessly with your existing platforms, cutting down writing time by 40%. The tool personalizes its suggestions according to your unique writing style and offers both free and premium versions to cater to different needs. Trusted by over 10,000 teams and 400,000 users, your data privacy is assured, and it boasts a supportive and active community across social media channels. | New API is a self-hosted AI gateway and model-management project maintained in the QuantumNous repository. It brings provider channels, access tokens, model restrictions, usage statistics and cost accounting into one interface. Teams supply their own authorized model-provider access and operate the gateway in their chosen environment. The gateway supports several API formats, including OpenAI-compatible requests, Claude Messages and Google Gemini. Compatibility has boundaries: the README marks Gemini-to-OpenAI conversion as text-only without function calling, and OpenAI-compatible to Responses conversion as in development. Test the exact endpoints, streaming behavior and tool calls your application uses before switching traffic. Routing features include weighted channel selection, automatic retry after failures and user-level model rate limits. The dashboard supports request-based, usage-based and cache-hit cost accounting, with token grouping and model-access controls. These controls can help organize usage, but retries and a common API format do not guarantee uninterrupted service or identical behavior across providers. The current repository license is AGPLv3. Docker Compose is the recommended quick-start path in the README, which also documents Docker commands with SQLite or MySQL. Running the software still involves infrastructure, operations and upstream model charges. Review the current license, secure your deployment and validate accounting against provider bills. Compare LiteLLM if you also want a Python SDK or a documented gateway for MCP servers and agents. |
| Category | AI Assistant | Developer Tools |
| Rating | No reviews | No reviews |
| Pricing | Free | Open Source |
| Starting Price | Free | N/A |
| Plans |
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| Tags | AIwriting tooltext generationautocompleteworkflow | AI gatewayLLM routingmodel managementrate limitingusage accounting |
| Features | ||
| Autocompletion for faster writing | ||
| Seamless integration with existing platforms | ||
| Personalized phrase suggestions | ||
| Cuts writing time by 40% | ||
| Free forever with a premium version available | ||
| Data privacy assured | ||
| Supports a large community of users | ||
| Endorsed by numerous professionals | ||
| Active on social media channels | ||
| Comprehensive guides available | ||
| Self-hosted AI gateway and model management | ||
| Provider channels, token groups and model restrictions | ||
| OpenAI-compatible, Claude Messages and Gemini format support | ||
| Documented limits on protocol conversion | ||
| Weighted channel selection and failure retries | ||
| User-level model rate limiting | ||
| Request, usage and cache-hit cost accounting | ||
| Docker Compose deployment documentation | ||
| View Compose AI | View New API | |
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