# OpenAI expands GPT-6 lineup with cheaper Sol and Luna models

> **Open Intelligence Dossier** · First detected: 2026-09-22 23:20 UTC · Category: Business

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-22/openai-expands-gpt-6-lineup-with-cheaper-sol-and-luna-models*