GPT-5.5 API price history
GPT-5.5 (OpenAI) currently costs $5.00 per million input tokens and $30.00 per million output tokens. No price change has been observed since tracking began on 2026-05-11. Confirmed unchanged as of 2026-06-15.
Price timeline
Single observed price point — the line shows the price holding steady from first observation through the latest weekly verification.
Every observed price point
| Observed | Input / Mtok | Output / Mtok | Cache read / Mtok | Source |
|---|---|---|---|---|
| $5.00 | $30.00 | $0.50 | archive backfill |
Dates are when our snapshot observed the price, not necessarily the vendor's announcement date. Prices from each lab's official pricing page, per million tokens.
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