What Happened
OpenAI introduced GPT-5 as the next flagship generation, emphasizing built-in thinking and broader usefulness across tasks.
Why It Matters
The launch continued the shift toward models that can decide when to “think longer,” reinforcing the idea that test-time compute and reasoning behaviors are core product features, not only research details.
Technical Details
- Positioning: Flagship model with built-in thinking
- Rollout: Announced for ChatGPT and for developers via the API (separate developer-facing post)