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OpenAI expanded its GPT-6

This story is from 2026-09-26. It is preserved in the archive; the latest stories are on the live feed.

Hours after Anthropic's Opus 5.5 launch, OpenAI expanded its GPT-6 lineup with Sol and Luna — cheaper, high-efficiency models cutting token prices roughly in half versus GPT-5.6, live across ChatGPT Work, Codex, and the API. The frontier price war has shifted decisively from "who is strongest" to "…

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  1. 2026-09-26 05:54 · DEV Community — AI
    OpenAI expanded its GPT-6

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