Google, Anthropic, OpenAI lead AI intelligence index: ARK Invest

Anthropic official brand assets (anthropic.com) ARK Invest’s AI and Cloud Director of Research has highlighted recent updates from Artificial Analysis, which evaluated global AI models based on intelligence and cost per task. Google, Anthropic, and OpenAI have been identified as the leading companies in this space. Google’s Gemini 4 Carbon, Anthropic’s Claude Opus 5.5, and OpenAI’s GPT-6 Astra are at the forefront, as assessed by Artificial Analysis’s Intelligence Index. These developments have sparked significant interest in the AI community. The evaluation of these AI models comes amid heightened scrutiny and interest in AI capabilities and efficiency. Google’s Gemini 4 Carbon leads the index with a score of 59, followed closely by Anthropic’s Claude Opus 5.5 and OpenAI’s GPT-6 Astra. The cost efficiency of these models varies, with OpenAI’s GPT-6 Astra noted for its lower cost per task. This analysis may influence market perceptions of these companies’ technological prowess and future potential. The AI prediction markets have reacted to these developments. The probability of Anthropic having the best AI model by the end of November 2026 is currently priced at 25% across relevant...