Can AI gather financial data reliably? I tested Gemini, ChatGPT, and Claude on pulling key metrics for major tech companies. All delivered usable results with solid tables—but with some caveats around reporting periods and market cap accuracy. Verdict: AI works well here, but still needs human oversight.

Can AI replace a controller? I tested ChatGPT on a simple parent-subsidiary scenario. It looked confident—but failed key steps, double-counted equity, and broke the balance sheet. It eventually fixed itself after multiple prompts. Verdict: AI still can’t replace a controller.