GPTProto

GPTProto is a unified API gateway giving access to 200+ chat, image and video models from OpenAI, Claude, Gemini, Grok and others, billed per token with no minimum and advertised discounts against official and OpenRouter prices.

GPTProto is an API aggregator that puts more than 200 AI models behind a single endpoint and a single account. The catalog spans text models from OpenAI, Claude, Gemini, Grok, DeepSeek, GLM, Kimi, Qwen, MiniMax and Hunyuan, plus image and video generators such as GPT Image, Nano Banana, Seedream, Midjourney, Seedance and Wan. Billing is per token with no minimum, and the site claims prices up to 30% below official provider rates, with a comparison column against OpenRouter as well. The service is aimed at developers and teams that call several model vendors and want one key, one invoice and one integration. The homepage groups models by use case, including benchmarks, roleplay, AI agents, image generation, video generation, content production, customer service, data extraction and business analytics. Each group is a table listing GPTProto's input and output price per million tokens, the discount against official pricing and OpenRouter, context window size, and a link to the model page. Cache-read prices are shown where a model supports them, and image models are priced per image. In practice a user creates an API key from the dashboard, picks a model from its page and sends requests through an OpenAI-compatible interface. The homepage mentions curl and CLI access, bring-your-own-key, routing and failover, and compatibility with coding agents and chat front ends such as Claude Code, Codex, Cline, Kilo Code, SillyTavern and Janitor AI. A browser-based generator lets people try an image model with a prompt before writing any code, and a savings calculator estimates the difference from paying providers directly. Among alternatives, GPTProto sits closest to OpenRouter and to buying credits from each lab separately. Its pitch is price and breadth rather than a proprietary model or workflow layer, so it suits cost-sensitive production workloads, agent pipelines and experiments across vendors. Teams that need a direct contract with a single provider may still prefer going to the source.