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.

Can AI handle basic math? I tested ChatGPT, Gemini, and Claude on 5th-grade word problems. All three delivered perfect results—accurate answers, clear explanations, and zero errors. A simple test. Results can still vary

Simple AI image test: ChatGPT, Claude, Grok, and Gemini all given the exact same prompt with no optimization. The differences were striking from cartoonish interpretations to near-photorealistic scenes revealing each model’s instincts, strengths, and blind spots right out of the box.

The Tester AI scoring explained: At The Tester AI, every test is built around a simple principle: Can AI actually do the job—not just in theory, but in practice? Each test is evaluated across five core categories, scored on a scale of 1 to 5: Output Delivered – Did the AI complete the task? Accuracy – How correct was the result? Quality – Is the output usable in a real-world setting? Ease of Use – How much effort, prompting, or iteration was required? Reliability – Was the be

Can Chat GPT, Gemini or Claude replace accountants? Can AI turn a simple trial balance into a P&L and Balance Sheet? Verdict: Chat GPT showed a low effort, Gemini didn't even try and Claude tried hard but failed harder.

Test: Can Gemini AI create a logo and full logo kit from an existing style? It generated a solid concept but failed on execution, no true transparent PNGs, inconsistent outputs, and repeated errors. ChatGPT partially fixed it but wasn’t reliable. Final score: 3/5.