Unverified50% confidenceFactExact time
Ultrathink is a prompt keyword that requests the model to think deeply, but it does not change the effort level, and such instructions are essentially defunct and considered a legacy feature.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/19/2026
First Seen
Valid until: 12/18/2026
Sources
Related Entities
Related Claims
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