New API vs SpellCopy
Side-by-side comparison · Updated October 2026
| Description | 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. | AI Writer is an advanced writing assistant app available on the App Store. It leverages artificial intelligence to help users create high-quality written content in various styles and formats. The app aims to enhance productivity for writers, bloggers, and students by providing suggestions, corrections, and content generation tools. Its features include grammar check, style improvements, and creative text generation based on user input. AI Writer is designed to be user-friendly, making it ideal for anyone needing assistance with writing tasks, from drafting emails to composing lengthy essays. |
| Category | Developer Tools | AI Assistant |
| Rating | No reviews | No reviews |
| Pricing | Open Source | Pricing unavailable |
| Starting Price | N/A | N/A |
| Use Cases |
|
|
| Tags | AI gatewayLLM routingmodel managementrate limitingusage accounting | writing assistantcontent generationgrammar checkstyle improvementsAI |
| Features | ||
| 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 | ||
| AI-powered grammar check | ||
| Style improvement suggestions | ||
| Creative text generation | ||
| User-friendly interface | ||
| Support for multiple writing formats | ||
| Customizable writing prompts | ||
| Real-time content suggestions | ||
| Context-aware corrections | ||
| Compatibility with iOS devices | ||
| Advanced language processing | ||
| View New API | View SpellCopy | |
Modify This Comparison
Also Compare
Explore more head-to-head comparisons with New API and SpellCopy.