★ Featured Guide · News
Anthropic launched Claude Fable 5 on June 9, 2026 - the first publicly available Mythos-class model and the most capable AI Anthropic has ever released to the general public. Fable 5 scores 80.3% on SWE-Bench Pro, outperforms Opus 4.8 on long and complex tasks, and excels at software engineering, scientific research, and vision. It is priced at $10/$50 per million tokens - less than half the cost of Mythos Preview. A key safeguard: cybersecurity, biology, and chemistry queries route to Opus 4.8 instead of Fable 5, triggering in under 5% of sessions. Free for Pro, Max, Team, and Enterprise subscribers until June 22.
Jun 10, 2026
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9 min read