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@grapeot: Reasoning models aren't the bombshell of 2024. Many people, upon first seeing o1 "think" for over ten seconds before answering, felt that models had suddenly learned to reason overnight. But stretching out the timeline, from CoT prompting (2022) to o1, a full four years passed in between. Three things often conflated: 1. Reasoning ability itself—already amplified by CoT systems in 2022 2. Training reasoning via reinforcement learning—academic prototypes of PRM existed in 2023 3. Turning reasoning into a billable, schedulable resource—this is the real watershed of 2024.

X AI KOLs Timeline ↗ · 2d ago Cached

A deep retrospective on the four-year evolution of reasoning models from CoT in 2022 to o1/R1 in 2024, pointing out that the true watershed is not the emergence of reasoning ability, but the conversion of reasoning into a billable, schedulable resource.

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