GPT-5.4 mini API Pricing and Cost Calculator
Strong small GPT for coding subagents, quick tool use, and high-volume work
- Input / 1M tokens
- $0.750
- Cached input / 1M tokens
- $0.075
- Output / 1M tokens
- $4.50
- Context window
- 400K
Strong small GPT for coding subagents, quick tool use, and high-volume work