Pioneers of AI Does OpenAI’s new model deliver on the hype? Inside GPT-5 with Jeremy Kahn
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Aug 9, 2025 
Jeremy Kahn, AI Editor at Fortune, dives into the much-anticipated launch of GPT-5. He evaluates its innovative features like dynamic routing and enhanced user interface. Jeremy discusses the model's evolution, emphasizing reduced hallucination rates and its positioning against competitors. He also highlights GPT-5's capabilities in health diagnostics and its use among students with a new 'study mode.' Lastly, he shares insights on OpenAI's strategies for talent retention and the model's role in the long journey toward artificial general intelligence.
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Selectable Voice Personalities
- GPT-5 provides four selectable personality modes (e.g., cynic, listener, robot) that alter tone and style.
- Users can choose more empathetic or concise voices, especially when using voice mode.
Hype Outpaced The Upgrade
- The launch came with heavy hype, but capabilities represent incremental upgrades rather than a paradigm shift.
- Rana El Kaliouby summarized it as a 'difference in degree, but not a difference of kind.'
Notable Coding Performance Gains
- GPT-5 shows clear coding gains, about 8–10% better on many benchmarks versus OpenAI's O3 model.
- Jeremy Kahn notes it scores well on SWE tests but may still trail some competitors in third‑party comparisons.