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Anthropic, OpenAI Announce Lower-Cost, Higher-Performance AI Models

Anthropic has released Opus 5.5, and OpenAI has launched GPT-6 Sol and Luna, both aiming to reduce costs while enhancing performance.

22 September 2026
Anthropic, OpenAI Announce Lower-Cost, Higher-Performance AI Models

AI companies Anthropic and OpenAI have both introduced new models designed to lower operational costs and improve efficiency.

Anthropic announced Opus 5.5, the latest iteration of its primary large-scale model utilized for demanding tasks such as coding and complex knowledge work. This release aims to make advanced AI capabilities more accessible.

Simultaneously, OpenAI unveiled GPT-6 Sol and Luna. These represent updated versions of OpenAI's mid-range or smaller models, emphasizing speed and cost-effectiveness for a broader application base.

These dual announcements signal a competitive shift in the AI market towards providing more economical yet powerful solutions. The new models are expected to facilitate wider adoption of AI technologies across various industries and applications by addressing cost barriers.

Original source: arstechnica.com