How much does GPT-5.5 Pro cost?

GPT-5.5 Pro is billed per token: $30 per million input tokens and $180 per million output tokens.

What is the GPT-5.5 Pro context window?

GPT-5.5 Pro accepts up to 1,050,000 tokens of context and can return up to 128,000 output tokens per request.

Is GPT-5.5 Pro cheaper than other OpenAI models?

No — 7 of the 8 OpenAI models we track have a lower input price, starting with GPT-5 mini at $0.25/M, GPT-5.5 at $5/M, GPT-5.6 Luna at $0.2/M.

Has GPT-5.5 Pro pricing changed recently?

No. GPT-5.5 Pro pricing has been stable across every weekly snapshot we've recorded.

GPT-5.5 Pro Pricing

Name: GPT-5.5 Pro
Brand: OpenAI
Price: 30 USD

OpenAI · GPT-5 · Live

Prices verified November 1, 2026

GPT-5.5 Pro costs $30 per million input tokens and $180 per million output tokens on the OpenAI API. It supports a 1,050,000-token context window and up to 128,000 output tokens per request. The model supports extended reasoning, image input, tool use. Pricing verified November 1, 2026.

GPT-5.5 Pro API pricing

GPT-5.5 Pro API pricing is $30 per million input tokens and $180 per million output tokens, verified November 1, 2026.

Input (per 1M tokens): $30
Output (per 1M tokens): $180
Batch discount: 50%
Context window: 1,050,000 tokens
Max output: 128,000 tokens

Estimate your GPT-5.5 Pro cost

Capabilities

GPT-5.5 Pro supports extended reasoning, image input, tool use.

Extended reasoningImage inputTool use

Price history

See full GPT-5.5 Pro price history

GPT-5.5 Pro API pricing has not changed since October 22, 2026.

Price-stable since October 22, 2026.

Frequently asked questions

Short answers to the most common questions about GPT-5.5 Pro pricing, limits, and capabilities.

Notes

OpenAI's premium GPT-5.5 tier — surfaced by the weekly refresh agent May 28, 2026 (source: openai.com/api/pricing). 6× standard GPT-5.5 rates. Closest analog to Anthropic Opus fast mode. Long-context tier above 272K applies 2× input / 1.5× output multiplier (not yet captured in schema). [2026-10-09] Verification attempt produced no clear result — recheck next run. Most aggregators report $30/$180, but one (anotherwrapper, dated 2026-08-25, citing OpenAI's page) reports $60/$480. Prices LEFT at $30/$180. [2026-10-13] Verification attempt produced no clear result — recheck next run. Same split: computeprices, framia and pricepertoken list $30/$180; anotherwrapper (Aug 20 and Aug 25 copies, citing OpenAI) lists $60/$480. Prices LEFT at $30/$180. Manual check of developers.openai.com/api/docs/pricing recommended. [2026-10-16] Verification attempt produced no clear result — recheck next run. Split unchanged: pricepertoken, modelcompare and framia list $30/$180; anotherwrapper (Aug 20/25, citing OpenAI) lists $60/$480. Prices LEFT at $30/$180. [2026-10-19] Verification attempt produced no clear result — recheck next run. Same split again: modelcompare, pricepertoken (≤200K) and framia list $30/$180; anotherwrapper (Aug 2026, citing OpenAI) lists $60/$480. No OpenAI-domain snippet. Prices LEFT at $30/$180. Fourth straight split — manual check of OpenAI's pricing page needed. [2026-10-22] Config changed: Context Window 400,000 → 1,050,000 and Max Output Tokens 16,384 → 128,000 per developers.openai.com/api/docs/models/gpt-5.5-pro, corroborated by requesty/promptlayer listings. Price now confirmed on OpenAI's own model page at $30/$180 (no cached-input discount; regional endpoints +10%); anotherwrapper's $60/$480 remains an outlier. Prices unchanged.