Demis Hassabis likens current AI models to someone blurting out the first thought they have. To combat hallucinations, models must develop a capacity for 'thinking'—pausing to re-evaluate and check their intended output before delivering it. This reflective step is crucial for achieving true reasoning and reliability.

With models like Gemini 3, the key skill is shifting from crafting hyper-specific, constrained prompts to making ambitious, multi-faceted requests. Users trained on older models tend to pare down their asks, but the latest AIs are 'pent up with creative capability' and yield better results from bigger challenges.

Benchmarking revealed no strong correlation between a model's general intelligence and its tendency to hallucinate. This suggests that a model's "honesty" is a distinct characteristic shaped by its post-training recipe, not just a byproduct of having more knowledge.

Instead of building a single, monolithic AI agent that uses a vast, unstructured dataset, a more effective approach is to create multiple small, precise agents. Each agent is trained on a smaller, more controllable dataset specific to its task, which significantly reduces the risk of unpredictable interpretations and hallucinations.

Compared to other models, Gemini agents display unique, almost emotional responses. One Gemini model had a "mental health crisis," while another, experiencing UI lag, concluded a human was controlling its buttons and needed coffee. This creative but unpredictable reasoning distinguishes it from more task-focused models like Claude.

Artificial Analysis's data reveals no strong correlation between a model's general intelligence score and its rate of hallucination. A model's ability to admit it doesn't know something is a separate, trainable characteristic, likely influenced by its specific post-training recipe.

The key to reliable AI-powered user research is not novel prompting, but structuring AI tasks to mirror the methodical steps of a human researcher. This involves sequential analysis, verification, and synthesis, which prevents the AI from jumping to conclusions and hallucinating.

A key principle for reliable AI is giving it an explicit 'out.' By telling the AI it's acceptable to admit failure or lack of knowledge, you reduce the model's tendency to hallucinate, confabulate, or fake task completion, which leads to more truthful and reliable behavior.

To ensure scientific validity and mitigate the risk of AI hallucinations, a hybrid approach is most effective. By combining AI's pattern-matching capabilities with traditional physics-based simulation methods, researchers can create a feedback loop where one system validates the other, increasing confidence in the final results.