Anthropic's Claude Sonnet 5 debuted at #6 on the Agent Arena leaderboard with a 12.24% confirmed success rate, ranking second overall in task completion across over 1 million live sessions. The model …
Svenska Dagbladet tested AI chatbots on Sweden's election compass, but a new analysis by Agent Arena stripped away system prompts and web search to measure raw model leanings. Across 28 frontier model…
Arena, an AI evaluation platform founded as a UC Berkeley student project, reached $100 million annualized revenue run rate within eight months of launching its enterprise offering. The platform now s…
Z.ai's GLM-5.2 model was claimed to rank No. 3 on Agent Arena and beat Google's Gemini 3.5 Flash, but the claim lacks context as Agent Arena is a live, multi-signal leaderboard where rankings vary by …
Anthropic suspended access to its Claude Fable 5 and Mythos 5 models for all customers after a US government directive citing a potential jailbreak as a national cybersecurity risk, a move Anthropic d…
Arena.ai launched Agent Arena, a new benchmark that ranks AI agents based on their performance on live user tasks rather than static test questions. The leaderboard evaluates models using tools for we…
LMSYS released the Agent Arena leaderboard, a new evaluation framework that uses causal tracing to rank AI agents based on millions of real-world interactions from users performing tasks like software…