New Anthropic, OpenAI models make same promise: A little more for a lot less money

Published September 22, 2026 · Category: Tech

Overview

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OpenAI and Anthropic both recently released new models aimed at lowering costs. Anthropic announced Opus 5.5, the latest version of its main mass-market workhorse model, used for tasks like coding and other complex knowledge work.

And OpenAI announced GPT-6 Sol and Luna, the latest versions of its middle-of-the-road or smaller models focused on efficiency and speed.

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Originally published at arstechnica.com.

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