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OpenAI CEO Sam Altman said an IPO is not planned for this year, calling the current moment 'ill-advised' for the ChatGPT maker to go public given mounting concerns about AI safety. His comments came alongside a broader wave of warnings from AI leaders, including Anthropic CEO Dario Amodei, who has argued for a slowdown in AI development pending safety measures. CNBC's Jim Cramer pushed back on Amodei's 'slowdown manifesto,' saying he has grown tired of the repeated warnings but conceded that Amodei's underlying concerns could still materially affect a range of AI-linked stocks if companies actually curb spending. Cramer laid out an action plan for investors to consider in that scenario, adding a market-facing angle to the broader debate over AI safety warnings and their implications for the IPO timeline.