Model pricing

GPT-5.5 Pro API pricing

Name: GPT-5.5 Pro API
Availability: InStock

Get GPT-5.5 Pro API rates: $30/MTok input, $180/MTok output. Compare cache pricing, context limits, and API capabilities.

Input / 1M tokens $30

Output / 1M tokens $180

Cache read / 1M $3

Context window 1.1M

When to use GPT-5.5 Pro

GPT-5.5 Pro is listed from openai with prompt caching, function calling, vision. Use this page to estimate prompt cost and compare it against alternatives before routing production workloads.

source_key: gpt-5.5-pro