OpenAI introduced GPT-6 Sol and Luna with lower API prices. Per million tokens, Sol costs $2 for input and $10 for output; Luna costs $0.10 and $0.50. The company reports improvements in professional work, coding and computer use.
Source / event date: September 22, 2026
The Financial Current · https://thefinancialcurrent.com/news/2026-09-27-openai-model-costs
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Analysis: Lower token prices can widen the set of economical automation projects. Compare cost per accepted result, including retries, review time and tool usage, before changing production routing.
The performance comparisons are provider-reported. They do not establish reliability for a particular bank workflow.
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