OpenAI has introduced GPT-6 Sol and GPT-6 Luna as faster, lower-cost additions to the GPT-6 family. The company says both models inherit advances from GPT-6 Astra across professional work, coding, factuality, computer use and alignment, while targeting everyday workloads and scaled deployments.
API prices are 50% below the promotional pricing of their GPT-5.6 predecessors: GPT-6 Sol is listed at $2 per million input tokens and $10 per million output tokens, while GPT-6 Luna is $0.10 and $0.50 respectively. The models are available in ChatGPT Work, Codex and the OpenAI API. Performance comparisons remain first-party claims and should be read in that context.