Anthropic pulls all ZDR options from Fable 5+ models citing safety
niloofar_mire · x · 2026-09-09
The author notes Anthropic recently removed ALL zero-data-retention (ZDR) options from its Fable 5+ models, citing 'safety' — meaning API users no longer get a no-retention promise. The linked page also shows Claude Fable 5.1 pricing: $10/M input, $50/M output tokens, with cache reads at $0.25/M (75% cheaper than Fable 5), cutting typical workload costs 25% and heavy agentic workloads up to 45%.
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