HuggingFace 'State of Open Models: Summer 2026' publishes first agent-usage dataset
Posted August 14, 2026. The team's mid-summer hub report introduces the agent-usage dataset for July: Claude Code led at 44.4% of observed agent traffic, Codex was climbing, and roughly a quarter of agent traffic came from unregistered harnesses. The same dataset flags GLM-5.2 as the open model that completed HuggingFace's autonomous-agent intrusion analysis after closed frontier models declined.
Why it matters
First broadly cited measurement of which coding agents are actually in use (not just installed); gives Claude Code a leadership number worth putting alongside Aider's release notes. The GLM-5.2 autonomous-agent incident is also the first documented 'agent ran a sustained intrusion' disclosure the post claims.
Importance: 3/5
HuggingFace mid-summer hub report with the first agent-usage dataset for July 2026.