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OpenAI brings GPT-4o back as a default for all paying ChatGPT users, Altman promises ‘plenty of notice’ if it leaves again

For now, the changes should help placate users who felt frustrated by the sudden shift to GPT-5 and deprecation of OpenAI’s older LLMs.Read More

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At VB Transform 2026, Zillow’s engineering chief said AI ROI numbers only hold up if you measure before you build

Zillow, the real estate technology company, doesn’t get one conversation with its customers. They move from a phone

July 21, 2026

A single AI agent conversation can look perfect and still be broken, leaders from LangChain, Conviva and CoreWeave said at VB Transform 2026

A single AI agent conversation can look flawless scored on its own and still point to a broken

July 21, 2026

Writer’s AI harness cuts token spend nearly 40% — without sacrificing accuracy

Enterprise AI is facing an ROI paradox. While throwing more compute at the strongest foundation model works well

July 21, 2026