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GPT-5.6 Sol
OpenAICurrent flagship — part of the GPT-5.6 family (Sol / Luna / Terra). Sol is the workhorse reasoning variant for coding, science, cybersecurity, and computer use. ~54% more token-efficient for coding. 2x input / 1.5x output surcharge above 272K tokens.
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Tracked on the AI Model Release Tracker — view release status & countdown
Open tracker →slow speedtextimageaudioReleased 2026-07-09