Models
gpt-5.3-codex-spark
A text-only research-preview Codex model built for near-instant response (over 1,000 tokens per second), optimized for real-time coding iteration — available to ChatGPT Pro subscribers.
Models
A text-only research-preview Codex model built for near-instant response (over 1,000 tokens per second), optimized for real-time coding iteration — available to ChatGPT Pro subscribers.