Preview 3,212 models across every provider we track. Sourced from published provider pricing. Data as of 2026-09-06.

Prices Changes API Plans About the data

gpt-5.5-pro-2026-04-23

openai

Input: $30.00 / M tokens
Output: $180.00 / M tokens
Context window: 1.1M tokens

Data as of 2026-09-06. Price history for this provider

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ModelWatch is a Keelhelm service. Prices are collected from providers' own published pricing; each provider's page remains the authority, and we link it on every model.