PricingOpenAIVerified
GPT-5.5 lands in the API at $5 / $30 per million tokens
Listen GPT-5.5
GPT-5.5 became available to API developers on April 24, 2026 at $5 per million input tokens and $30 per million output tokens with a 1M-token context window. GPT-5.5 Pro is priced at $30 per million input tokens and $180 per million output tokens.
Corroborating sources
- OpenAI API pricing
https://openai.com/api/pricing
- CNBC — GPT-5.5
https://www.cnbc.com/2026/04/23/openai-announces-latest-artificial-intelligence-model.html