Model Price Index
Updated 2026-07-14 · Changelog

GPT-5.5 Pro

OpenAI

Pro reasoning model that uses more compute for smarter, more precise responses on hard problems

$30.00

Input

$180.00

Output

per 1M tokens

Ratesper 1M tokens

Input$30.00
Output$180.00
Batch Input$15.00
Batch Output$90.00

Estimate Your Monthly Cost

A request with input and output tokens, requests / month at a % cache hit rate $5,700/mo

Compare all models at this workload →

Excludes cache writes and batch discounts.

Also routable via OpenRouter at the same list price. OpenRouter adds a 5.5% platform fee on pay-as-you-go credits (verified 2026-07-08).

Specifications

API Model IDgpt-5.5-pro
Context Window272K tokens
Max Output128K tokens
Modalitiestext · image
Capabilitiestool-use · streaming · json-mode · vision · code

More OpenAI Text / Chat Models

GPT-5.6 Sol · GPT-5.6 Terra · GPT-5.6 Luna · GPT-5.5 · GPT-5.4 Pro · GPT-5.4 · GPT-5.4 mini · GPT-5.4 nano ·