The week ahead: 20260615

Industry

• [Tweet] Anthropic Fable will visibly flag and deny service if used for “frontier LLM development”. Related announcement.
• [Announcement] Actually scratch that, no more Fable / Mythos.
• [Announcement] Ona acquired by OpenAI.

Other

• [Tweet] Open Knowledge Format.
• [Tweet] Specialist OpenEvidence models outperformed by close-source, generalist models.
• [GitHub] OpenMythos: open-source reconstruction of the Claude Mythos model architecture.

Have a great week!