Arena.ai (@arena)T1·Models
78 pts
Anthropic has launched Claude Fable 5.2 and Claude Mythos 5.2, claiming gains in coding, reasoning and vision for tackling demanding technical work. Fable 5.2 is now live in Arena's Agent Arena and Code Arena, where it can use web search, filesystem and terminal tools on long-horizon agentic tasks, with leaderboard scores to follow.