Unverified50% confidenceFactExact time
There are rumors that Anthropic started a brand-new pretraining run about a week ago, targeting a next-generation model larger than Claude Fable 5.5.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/10/2026
First Seen
Valid until: 1/8/2027
Sources
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