Musk says Grok Bot’s costs are ‘unsustainably high,’ while OpenAI admits Dots are ‘compute heavy.’ Is the personal AI agent push dead on arrival?

At a New York dinner, OpenAI's head of ChatGPT outlined the company's vision for agentic AI, even as both OpenAI and Elon Musk's xAI flagged steep compute costs for their personal AI agents—Musk called Grok Bot's costs "unsustainably high," while OpenAI conceded its Dots are "compute heavy." The remarks underscore the tension between ambitious agent roadmaps and the economics of running them at scale. The push matters because personal AI agents are being pitched as the next major platform shift, and cost overruns could delay rollout or force pricing changes. Watch for how OpenAI and xAI balance compute spending against adoption, and whether rivals position cheaper agent offerings as a differentiator.