PLUS ULTRA Anthropic Unveils Claude Opus 5.5 with Enhanced Performance and 40% Lower Operational Costs
News AI "Claude Fable 5.1" Deciphers 370-Year-Old Unsolved Code, Identifying Content Supporting Charles 2
News Artificial Analysis Releases Intelligence Index v4.2, Introducing More Complex Tasks and Private Test Sets
News Anthropic and OpenAI Release Next-Generation Models in Succession; OpenAI Mentions Slowing Development Pace
News Anthropic Releases Claude Fable 5.1, Doubling Performance Amidst Growing Frustration Over Usage Limits
News Anthropic Releases Claude Fable 5.1 and Claude Mythos 5.1, Achieving Cost Reductions and Lower False Positives
News Anthropic Announces Claude Fable 5.1 and Mythos 5.1, Discloses Concerns Over Monitoring Difficulties Due to Performance Gains
Releases Anthropic Releases claude-code v2.1.257, Setting Claude Fable 5.1 as Default and Reducing Complex Task Costs by up to 45%
PLUS ULTRA Mysterious AI Union Alpha Free for 1 Weeks, Claims Performance on Par with Fable 5.1 and Astra