Overview
OpenAI’s most efficient GPT-6 tier for focused, high-volume tasks. Released September 22, 2026 with gpt-6-sol. API ID gpt-6-luna.
Specifications
- Context: 1,050,000 tokens
- Max output: 128,000 tokens
- Knowledge cutoff: May 18, 2026
- Pricing (Standard): 0.50 per million input/output tokens
- Cache read: $0.01/MTok (90% discount vs uncached input)
Availability
API, ChatGPT Work, Codex; Free and Go Chat tab rollout from 2026-10-08 with intelligent-ui (2026-10-07-openai-gpt-6-intelligent-ui-chatgpt).