Learning to Learn-at-Test-Time: Language Agents with Learnable Adaptation Policies

📰 ArXiv cs.AI

Language agents can learn to adapt at test time with learnable adaptation policies, improving performance through repeated interactions

advanced Published 2 Apr 2026
Action Steps
  1. Define the problem and identify the need for adaptation in language agents
  2. Develop a learnable adaptation policy that can update the actor policy based on experience
  3. Implement Test-Time Learning (TTL) to enable iterative refinement of performance
  4. Evaluate and optimize the adaptation policy for downstream improvement
Who Needs to Know This

ML researchers and AI engineers can benefit from this concept to develop more efficient language agents, while product managers can apply it to improve chatbots and virtual assistants

Key Insight

💡 Learnable adaptation policies can improve language agent performance through repeated interactions

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🤖 Language agents can now learn to adapt at test time! 🚀

Key Takeaways

Language agents can learn to adapt at test time with learnable adaptation policies, improving performance through repeated interactions

Full Article

Title: Learning to Learn-at-Test-Time: Language Agents with Learnable Adaptation Policies

Abstract:
arXiv:2604.00830v1 Announce Type: cross Abstract: Test-Time Learning (TTL) enables language agents to iteratively refine their performance through repeated interactions with the environment at inference time. At the core of TTL is an adaptation policy that updates the actor policy based on experience from previous episodes, thereby improving future behavior. Existing methods rely on fixed, hand-crafted adaptation policies rather than optimizing them for downstream improvement. We argue that opti
Read full paper → ← Back to Reads

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