GPT-5.5
Last verified August 17, 2026 · OpenAI pricing ↗$5.00/1M input · $30.00/1M output · 1.1M context · OpenAI
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Alternatives to GPT-5.5
Pricing Details
OpenAIRanked #1 on Artificial Analysis Intelligence Index (April 2026). Cached input: $0.50/1M. 2x input / 1.5x output surcharge above 272K context (whole session). Available in Responses API and Chat Completions API.
Input / 1M tokens
$5
Output / 1M tokens
$30
Context Window
1.1M
Max Output
128K
Price History
No price change recorded since 2026-07-24, when this site started tracking this model; it launched on 2026-04-23.
Frequently Asked Questions
Common questions about GPT-5.5 pricing and usage
Read More About GPT-5.5
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OpenAI split GPT-5.6 into three tiers and priced the flagship exactly where GPT-5.5 already sat. The tier worth your attention is the cheaper one in the middle.
July 2, 2026 · 7 min read