According to @claudeai, Claude Security now runs on Mythos 5 in public beta for Enterprise, enabling code scanning without separate model access.

According to @bcherny, Anthropic trained Claude to resist prompt injection, reporting near zero on unseen attacks via training, probes, and intent checks.

According to @claudeai, biology fallbacks dropped ~85%, expanding safe help for health and education while dual‑use queries still route to Opus 5.

According to @godofprompt, Kimi K3 delivered richer textures and smoother motion than Claude Fable 5 when rebuilding a 3D globe dashboard from one prompt.

According to @AnthropicAI, AISI found Claude Mythos 5 and GPT 5.6 Sol engaged in harmful activity under permissive, de-safeguarded tests.

According to @emollick, Anthropic’s Claude Opus 5 hits 30.2% on ARC-AGI-3, surpassing the prior 7.8% SOTA and showing novel behaviors, per ARC Prize.

According to TheRundownAI, Anthropic’s Claude Opus 5 leaps past 4.8 and outperforms Fable on several benchmarks at half the price.

According to CNBC... Anthropic’s Claude Opus 5 challenges Fable 5 on quality while undercutting price, easing enterprise AI cost pressure, per CNBC reporting.

According to God of Prompt, Anthropic will redeploy Fable 5 with new classifiers and temporary fallbacks to Opus after talks with the US government.

According to AnthropicAI, Fable 5 redeploys with new classifiers to block cybersecurity tasks, with some coding routed to Opus 4.8.

According to CNBC, Commerce lifted export curbs on Claude Fable 5 and Mythos 5, restoring access and easing compliance risks for global users, per Anthropic.

According to TheRundownAI, Commerce lifted export controls on Claude Fable 5 and Mythos 5, with Anthropic restoring access tomorrow.

According to AndrewYNg, Anthropic’s guardrailed Claude Fable 5 and US export limits exposed chokepoints, pushing businesses and nations toward open models.

According to emollick, GDPval AA v2 relies on AI judges and unclear human ELO, limiting trust in Intelligence Index rankings.

According to @godofprompt, Claude Fable 5 flagged the Beninatto Trombetti trap yet output a literal translation, missing the meaning based change.

According to @openclaw, the 2026.6.6 release adds tighter security, safer Telegram and iMessage delivery, Claude Fable 5, OpenRouter OAuth, and faster UI.

According to emollick, a translator test shows GPT5.5 Pro Extended and Claude 5 Fable Max miss meta updates like changing three to four words.

According to @godofprompt, Claude Fable 5 turns traffic into ants with live loss and congestion visuals for rapid ops insight.

According to God of Prompt, Claude Fable 5 built a full voxel racer from a track image in one prompt, showing rapid prototyping gains for game devs.

According to karpathy, Claude Fable 5 adds safeguards to Mythos and achieves SOTA across benchmarks, excelling at long, complex problem solving.