№ OB–03
Stream of Thought
Show the model's reasoning as it happens, so waiting becomes watching.
- Class
- Observe
- Status
- established
- Named by
- shapeof.ai
- First observed
- DeepSeek R1 mainstreamed the pattern, 2025-01
Named by Shape of AI. Exposing intermediate reasoning turns dead wait time into perceived progress and gives users a preview of how the answer is being built — errors become visible mid-flight instead of after. DeepSeek’s R1 made it a mainstream expectation almost overnight.
Why it works. Latency with narrative feels shorter than silence. And reasoning text doubles as a trust artifact: users learn whether the model understood the question before reading its conclusion.
Steal: collapse by default after completion; keep the thinking skimmable. Skip: raw unedited reasoning on high-stakes tasks — visible confusion erodes more trust than it builds.