10% surcharge on GPT-5.4 for in-region processing
Keeping data in-region adds a 10% surcharge to GPT-5.4 models; the standard global rates stayed at $2.50 input and $15 output per 1M tokens.
What changed
- Price increase, 21%, Mar 11, 2026
- At 12M tokens a month on its top model: $45.50 → $55 a month ($114 more a year)
- Before: No regional surcharge
- After: 10% surcharge on in-region GPT-5.4 usage
- Existing customers: Not stated.
Cheaper alternatives to OpenAI API
At 12M tokens a month on its top model, OpenAI API costs $200/mo. 1 LLM API costs less:
- Gemini API: $40/mo (Pay-as-you-go Standard paid tier, text only, list prices as of 2026-10-17), covers 85% of OpenAI API; missing or partial: OpenAI-compatible endpoint (partly), Managed fine-tuning, Dedicated model endpoints
OpenAI API alternatives: 3 LLM APIs compared, at every size.
Sources
Every price and change for OpenAI API: OpenAI API.