Anthropic Fable 5.1 is seeing materially weaker initial traction than Fable 5 across the first 48 hours after launch.
OpenRouter token usage for Fable 5.1 was 66.6% lower than Fable 5 over the comparable two-day launch window.
TickerTrends social post tracking showed a similar result, with Fable 5.1 discussion volume 56.3% lower than Fable 5 over the same relative launch period.
For now, the initial launch comparison is weak: Fable 5.1 is materially behind Fable 5 on both token usage and social interest.
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