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GPT-5.5 Pro API pricing on OpenAI

Every OpenAI GPT-5.5 Pro rate we track, compared against 2 providers serving the same model.

Input from /1M
$15.00
Output /1M
$90.00
Price rank
#1 of 2
Last updated
October 15, 2026

OpenAI currently has the cheapest GPT-5.5 Pro input price among the 2 providers we track.

OpenAI GPT-5.5 Pro rates

Prices per 1M tokens. Batch and cached-input rates are shown where the provider publishes them.

OpenAI GPT-5.5 Pro pricing by mode
ModeInputOutput
Batch$15.00/1M$90.00/1M
Standard$30.00/1M$180.00/1M

About GPT-5.5 Pro

Creator
OpenAI
Modalities
text, image
Full GPT-5.5 Pro details and every provider →Compare API pricing for every OpenAI model →

GPT-5.5 Pro on other providers

About OpenAI

OpenAI is an AI research company offering its GPT model family, reasoning models, image generation, and realtime audio models through its API platform. Developers build on the Responses API and Agents SDK with pay-per-token pricing.

Frequently Asked Questions

How much does GPT-5.5 Pro cost on OpenAI?

OpenAI serves GPT-5.5 Pro from $15.00 per 1M input tokens, across 2 tracked pricing modes. Prices are collected daily — see the table above for current input, output, and cached-input rates.

Is OpenAI the cheapest way to run GPT-5.5 Pro?

Of the 2 providers we track serving GPT-5.5 Pro, OpenAI currently has the lowest input price. Rates change often, and throughput and latency differ between providers — check the comparison above before committing.

Does OpenAI offer batch or cached pricing for GPT-5.5 Pro?

We track 2 GPT-5.5 Pro offerings from OpenAI. Batch and cached-input rates appear in the table above when the provider publishes them; blank cells mean we have no current figure for that mode.