Unverified50% confidenceFactExact time
First-generation reasoning models often had a clear on/off switch, with the base model and reasoning model as two separate entities; nowadays it is more common for a single model to exhibit both behaviors, adjustable via reasoning intensity settings.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/20/2026
First Seen
Valid until: 12/19/2026
Sources
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