GPT-5.3 Codex Spark API Pricing and Cost Calculator
Coding-optimized GPT model for repository edits, reviews, and agentic software work
- Input / 1M tokens
- $1.75
- Cached input / 1M tokens
- $0.175
- Output / 1M tokens
- $14.00
- Context window
- 128K
Coding-optimized GPT model for repository edits, reviews, and agentic software work