TestingCatalog adds email AI brief as GPT-6 Sol/Luna and Opus 5.5 land
testingcatalog · x · 2026-09-23
Leaker account TestingCatalog is adding an email edition of its "Daily AI Brief" (Tuesday–Saturday). Highlights from the latest issue: OpenAI launched faster, cheaper GPT-6 Sol and Luna rolling out in ChatGPT Work and Codex; Anthropic launched Claude Opus 5.5 with 40% lower typical API costs than Opus 5, available across Anthropic, AWS, Google Cloud, and Azure; Meta's Muse video model entered closed beta with native audio and is being prepped for Messenger and Telegram. Unconfirmed rumors include Anthropic testing a Hub Mode for sub-agents and Meta's autonomous Hatch agent.
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