The 2025 AI Agent Index

The 2025 AI Agent Index documents 30 prominent AI agents, tracking their origins, design, capabilities, ecosystem, and safety features based on public information and developer correspondence. Key findings indicate a rapid deployment acceleration in 2024-2025, with autonomy levels rising concurrently across chat, browser, and enterprise agent categories. A significant "Transparency Gap" exists, as only 4 of the 13 agents exhibiting frontier autonomy disclose any safety evaluations, with developers sharing far more capability data than safety practices. The ecosystem shows high concentration, relying heavily on GPT, Claude, or Gemini foundation models. Furthermore, there is no standard for web conduct, with some agents designed to mimic human browsing, and development is geographically concentrated in the US (21/30) and China (5/30), exhibiting different safety documentation approaches. The index methodology involved systematic selection based on agency, impact, and practicality, with agents categorized as Chat (12), Browser (5), or Enterprise (13).

(Source：AI Agent Index)