Expired50% confidenceEventExact time
Anthropic is internally red-teaming a new model codenamed 'Oceanus,' which is considered the successor to Mythos Preview.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
From Claude Oceanus to GPT-5.6: A Complete Breakdown of This Week's Major AI Model Updates
bilibiliAI_Express6/6/2026
Related Claims
UnverifiedAnthropic released a new model named 'Fable.'70% similarUnverifiedAnthropic is about to release a new reasoning model.68% similarUnverifiedMythos is Anthropic's next-phase flagship product line, comprising Mythos Docs and a model codenamed 'Copybara'.66% similarUnverifiedAnthropic's Fable 5 has the internal codename Mythos 5 and is its frontier research-grade model.63% similarUnverifiedAnthropic is advancing the new Claude Mythos model through controlled expansion rather than direct public release62% similar
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