GPT-5.6 Luna

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

Version History

5.6minor

GPT-5.6 Luna introduces a cost-optimized model in the GPT-5.6 series with 1M context window at $1/$6 per 1M tokens. Released July 9, 2026 with February 2026 knowledge cutoff.

Coverage