GPT-5.6 vs Gemini 3.6: When given the same schedule, the difference in AI performance became clear

In a TechRadar comparison, GPT-5.6 and Gemini 3.6 Flash were tested on the same personal materials for scheduling tasks.

GPT-5.6 flagged schedule conflicts, canceled events, receipt totals, and priorities, turning the data into more actionable to-dos.

Gemini 3.6 Flash mostly summarized the files and missed some overlapping events and follow-up items.

The test suggests GPT-5.6 may be better suited for real-world assistant work like planning, prioritization, and mixed-data interpretation.