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RefCon: Iterative Refinement and Contrastive Memory Extraction for Context-Evolving Agent

Long-horizon agent interactions generate useful but noisy experience, and retraining models to absorb it is expensive. Context-evolving agents therefore need memory extraction methods that improve with more test-time compute without relying on gold labels. We propose RefCon, which combines sequential self-refinement with parallel self-contrast to extract higher-quality memories without gold…

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How AI Voice Agents Actually Work

AI phone agents went from obviously robotic to occasionally indistinguishable from a person in about two years. The reason is not one breakthrough.

  • Voice agents use three models and telephony in a pipeline
  • Latency under 1.5 seconds is crucial for natural conversation
  • Task completion capability distinguishes practical voice agents

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