AI

Google Open Sources Harness2 for Self Improving AI Agents

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 19/10/2026, 00:47:25 UTC.

Briefings

Google released Harness2, an open-source system that allows AI agents to autonomously refine their own toolkits after each task. Unlike traditional setups where prompts and tools are fixed, Harness2 enables agents to propose, test, and select improved configurations based on performance metrics. The system uses the same model weights across tasks, learning from outcomes rather than retraining, and has been tested on Gemini 3.5 Flash and GLM-5 across legal, office, and professional benchmarks.

Key points

• Harness2 enables AI agents to autonomously refine their own toolkits after each task by proposing, testing, and selecting improved configurations based on performance metrics.
• The system uses the same model weights across tasks, learning from outcomes rather than retraining, and has been tested on Gemini 3.5 Flash and GLM-5 across legal, office, and professional benchmarks.

Context

This finding addresses the limitation of fixed AI setups where prompts and tools are designed once and reused unchanged. Harness2 represents a shift toward self-improving agents that adapt their operational frameworks dynamically based on task outcomes.

Limitations

Evidence covers only Gemini 3.5 Flash and GLM-5 on legal, office, and professional benchmarks. No correct answers or graders were required during testing. GitHub link and comments are available but do not constitute formal validation.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 19/10/2026, 00:48:06 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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