GPT-5.6 Luna

Name: GPT-5.6 Luna
Brand: Snowflake Cortex

by Snowflake Cortex · family gpt-luna · listed Jul 2026RTV

Cost-efficient GPT-5.6 model for fast, high-volume workloads

Current rates USD per 1M tokens

Input—

Output—

Cache read—

Cache write—

Model id: openai-gpt-5.6-luna
Context window: 1.1M tokens
Max output: 128K tokens
Input modalities: text, image, pdf
Output modalities: text
Reasoning: yes
Tool calls: yes
Open weights: no
Knowledge cutoff: Feb 2026
Released: 2026-07-09
Last updated: 2026-07-09
Provider docs: docs.snowflake.com/en/user-guide/snowflake-cortex/cortex-rest-api