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GPT-4o

Published byDev AI
9/9/2025

Endpoints

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Ungrouped Endpoints
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What is the GPT-4o API?

GPT-4o (“o” for “omni”) is our versatile, high-intelligence flagship model. It accepts both text and image inputs, and produces text outputs (including Structured Outputs). It is the best model for most tasks, and is OpenAI most capable model outside of our o-series models.

GPT-4o API is available on the JoJ API marketplace. Subscribe with a single JoJ API key, call it through one gateway, and pay from one wallet — no separate account or contract with the provider.

Pricing & plans About this API Discussions More APIs by @swift-ai OpenAPI spec

GPT-4o API endpoints

  • POST/chat/completions

    Chat Completions

    Creates a model response for the given chat conversation