gpt-5.3-codex

Tool callingStreamingVisionReasoning

Overview

gpt-5.3-codex is available on MAX API through the OpenAI-compatible API.

Pricing

Official list prices in USD. Token prices are per 1M tokens.

Tier	Input	Output	Cache read
All requests	$1.75	$14	$0.175

Cache read applies to prompt tokens served from the prompt cache; cache write applies to tokens written into it.

Example request

curl https://clubs.byte-ai.cn/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.3-codex",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'