Watch now | 🎙️Early access to Claude Fable 5: what Anthropic claims, what I tested, and my honest take

Anthropic launches Mythos with Fable 5. Six capabilities for agents: 80.3% code reasoning, extended thinking, autonomy. Vision, science acceleration, enterprise pricing

Anthropic launched Claude Fable 5 on Tuesday, a Mythos-class model with safeguards blocking cybersecurity and biology queries, priced at $10 per million input tokens.

Anthropic has released a full version of its cybersecurity-centric Claude Mythos model—along with a safer version for the general public.

Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like…

Claude Fable 5 brings Mythos-class AI coding power to general users, but with cybersecurity guardrails, fallback models, and pricing that could make developers think twice.

Anthropic first announced Mythos in April, which it called a "step change" in capabilities, but opted to tightly control its rollout.

It says new safeguards make it possible to release a Mythos-class model it previously said was too risky to make public.

Anthropic launches Claude Fable 5, a Mythos-class AI model engineered with new safeguards that specifically restrict its use in cybersecurity.

Claude Fable represents another big jump in AI

Back in April, Anthropic unveiled its Claude Mythos AI model that it said was too powerful to publicly release. Instead,...

Anthropic is pricing both Fable 5 and Mythos 5 at $10 per million input tokens and $50 per million output tokens. The company says that is less than half the price of Claude…

Anthropic launched Claude Fable 5 with safeguards for high risk tasks while limiting Mythos 5 to trusted cyber partners.

Anthropic said it could not yet release the full Claude Mythos 5 model, so instead it created Fable 5 with baked in safeguards.

Claude Fable 5 from Anthropic is now available in GitHub Copilot, the first model in Anthropic’s Mythos class, designed for long-horizon, autonomous coding and knowledge-work…

Anthropic's 5th-generation AI model makes Mythos-level capabilities available to all customers and shows exceptional performance in coding, knowledge work, and vision— now…

As AI models get more powerful, there’s also going to be a level of danger. Anthropic announced Mythos not long...

Anthropic launched Claude Fable 5 today, June 9, 2026. It is the most capable model Anthropic has...

Watch now | 🎙️Early access to Claude Fable 5: what Anthropic claims, what I tested, and my honest take

Anthropic launched Claude Fable 5, its most capable consumer-facing AI model to date, but with a few guardrails.

Positioned a tier above the previous Opus models, Claude Fable 5 sets a new benchmark for generally available AI, outperforming rivals like OpenAI's GPT-5.5.