gpt-5.3-codex

Description

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...

Quick Start

curl https://router.tangle.tools/v1/chat/completions \
  -H "Authorization: Bearer $TANGLE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.3-codex",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Modalities