GPT-5 Chat API via TokenMix

Use GPT-5 Chat from OpenAI as a chat model through the TokenMix AI API relay and multi-model gateway.

GPT-5 Chat is optimized for conversational tasks with 128K context, offering natural dialogue without reasoning overhead.

API access

  • Base URL: https://api.tokenmix.ai/v1
  • Model ID: gpt-5-chat
  • OpenAI SDK compatible. Change the base URL and use your TokenMix API key.

Pricing

Input $1.2125/M tokens, output $9.7/M tokens

Capabilities

Vision, Function calling, JSON mode, Streaming

Model specs

  • Context: 128K tokens
  • Max output: 16K tokens

Availability

3/3 available API endpoints are healthy right now.

Start using this model

Create an API key, top up from $1 when needed, and call this model through the TokenMix OpenAI-compatible endpoint.

Create API key · View pricing · Quickstart