CAST (Tool use / function calling): current frontier — recent, not yet superseded in the knowledge base. 0 paper(s) critique it, 0 beat it on benchmarks — not ranked as a superseded baseline. Sub-problem: cluster led by Toolformer. Newer alternatives in the same sub-problem include CAST, CostBench.

Tool use / function calling

CAST

Case-Based Calibration of Adaptive Reasoning and Execution for LLM Tool Use

On the frontierfirst seen May 14, 2026

Current frontier — recent, not yet superseded in the knowledge base

0 papers critique it · 0 beat it on benchmarks

What to use instead

Recent methods in the same sub-problem, not yet superseded in the knowledge base — arXiv benchmark leaders, not vetted production recommendations.

CASTCase-Based Calibration of Adaptive Reasoning and Execution for LLM Tool Use
May 14, 2026
CostBenchCostBench: Evaluating Multi-Turn Cost-Optimal Planning and Adaptation in Dynamic Environments for LLM Tool-Use Agents
Nov 4, 2025