OpenAI and Anthropic unveil cheaper… | The BriefBrief
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Event Brief

OpenAI and Anthropic unveil cheaper next-gen models

Filed: Sep 22, 2026 at 3:04 PM ET
Summary: OpenAI introduced GPT-6 Sol and GPT-6 Luna as part of its first release since a call to slow down. Anthropic unveiled Claude Opus 5.5, also positioned as a cheaper model release.
WHO: OpenAI and Anthropic
WHAT: OpenAI and Anthropic released new, cheaper AI models: GPT-6 Sol and GPT-6 Luna, and Claude Opus 5.5.
WHEN: Sep 22, 2026 at 2:28 PM ET
WHERE: Location not specified
WHY: Cause not yet established.

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