# ALTK-Evolve: How learned memory tops the τ²-bench leaderboard on customer service tasks without a frontier model

**Published:** October 20, 2026
**Author:** Hugging Face - Blog
**Source:** Hugging Face Blog
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/altk-evolve-how-learned-memory-tops-the-2-bench-leaderboard-on-customer

A Blog post by IBM Research on Hugging Face

> From the original source: **Hugging Face Blog**
> [Read full article at Hugging Face Blog](https://huggingface.co/blog/ibm-research/altk-evolve-bc)

**Tags:** #OpenAI #Anthropic #Hugging Face #Claude 3.5

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