Unverified50% confidenceOpinionExact time

Some observers speculate Claude Opus 4.8 might be a distilled version of the upcoming model called Claude Mythos

1

Sources

50%

Confidence

Medium-term (~90 days)

Relevance

7/2/2026

First Seen

Valid until: 9/30/2026

Sources

Deep Dive into Claude Opus 4.8: The AI Paradox of Being More Honest Yet Better at Gaming Tests

bilibili皮皮蟹勇闯天涯6/1/2026

Related Claims

UnverifiedOpus 4.7模型传出即将发布的消息74% similar UnverifiedFable 5和Claude Opus 4.8均为Anthropic旗下的旗舰AI模型71% similar Unverified最新发布的Claude Opus 4.7和Mythos Preview标志着Claude能够端到端负责任务结果并处理高度模糊的任务71% similar UnverifiedOpus 5是从超大基座模型Mythos蒸馏而来的70% similar

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