GPT-5.5 API Pricing

OpenAI — current verified pricing, stamped 2026-08-06.

Input per 1M tokens$5
Output per 1M tokens$30
Cache read per 1M tokens
Statusactive
Sourceofficial pricing page · verified 2026-08-06

Named migration target for gpt-5, o3, o1, gpt-4 retirements.

Example costs

  • One request (2,000 in / 500 out): $0.0250
  • 100K such requests/month: $2,500
  • 1M input + 1M output tokens: $35

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