Unverified50% confidenceFactExact time
In Claude commercial products (such as Claude for Work and the API), a thumbs up or thumbs down stores the entire conversation for up to five years and may be used to train models.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/30/2026
First Seen
Valid until: 1/28/2027
Sources
An 11-Hour Reasoning Model Course in Practice: How Small Models Learn to Think
youtubeXun Zhu10/28/2026
Related Entities
Related Claims
UnverifiedClaude Free, Pro and Max only use data to train models when the user actively permits it, with the exception of conversations flagged by safety review; after deletion they are cleared within 30 days; if the user permits training, de-identified conversations may be retained for up to 5 years.65% similarUnverified'Meta-work' (building agent tools, monitoring pipelines, etc.) rose from 10% of Anthropic employees' interactive Claude sessions in autumn 2025 to 22% in spring 2026.60% similarUnverifiedSending a chat message does not immediately retrain the model; training repeatedly adjusts model parameters through large amounts of data, takes weeks or even months, and is usually done offline; inference, by contrast, uses the already-trained fixed parameters to process new input.60% similarUnverifiedThe tutorial proposes a six-week learning plan, presenting an overall progressive structure from theory to hands-on practice to commercial implementation.60% similar
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