CodingPlanX

You send requests with one API key and get responses back from any of more than 600 large language models, including GPT-4, Claude 3.5, Gemini and DeepSeek.

CodingPlanX is an AI gateway for developers, startups and enterprises that puts many model providers behind a single access point.

It is compatible with the OpenAI, Anthropic and Vertex protocols, so code written for those formats can point at CodingPlanX without a rewrite of the request structure.

The platform pools capacity across providers to keep service available and stable, and CodingPlanX says this removes rate limit problems.

It also claims inference costs up to 90% below official pricing, which is a vendor figure you should test against your own usage before planning a budget around it.

Pricing is enterprise, so expect to talk to the team rather than sign up on a fixed public plan.

The main appeal is having one key and one API for AI model access instead of juggling accounts with each provider.