OpenAI: GPT-5.3-Codex

Model id: gpt-5.3-codex

• Input: $2.19 per 1M tokens
• Output: $17.50 per 1M tokens
• Context: 400000 tokens
• Providers:
• Capabilities: chat, code, reasoning, tools, vision

curl https://api.simhaonline.ai/v1/chat/completions -H "Authorization: Bearer $API_KEY" -d '{"model": "gpt-5.3-codex", "messages": [{"role": "user", "content": "Hello"}]}'