GPT-5.4 API Pricing

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

Input per 1M tokens$2.5
Output per 1M tokens$15
Cache read per 1M tokens
Statusactive
Sourceofficial pricing page · verified 2026-08-06

Example costs

  • One request (2,000 in / 500 out): $0.0125
  • 100K such requests/month: $1,250
  • 1M input + 1M output tokens: $17.5

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