Bumo Router

gpt-5.3-codex API

Call OpenAI's gpt-5.3-codex with one Bumo Router key — OpenAI & Anthropic compatible, pay per token.

Create API Key

Tool calling

Vision

Reasoning

Pricing$ / 1M tokens

Input

$1.855

Output

$14.84

Cache Read

$0.1855

Context

200K

Quick start

curl https://router.bumo.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "gpt-5.3-codex",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

Try it