GPT-5.6 Luna Pro

OpenAI🇺🇸 United States
active
Context window1000K tokens
Input / 1M tokens$1
Output / 1M tokens$6

Version History

5.6minor

GPT-5.6 Luna Pro is a reasoning-enhanced variant of GPT-5.6 Luna with reasoning.mode set to pro for higher-quality responses on complex tasks. Features 1M context window and February 2026 knowledge cutoff.

Coverage