Living definition
What is Berkeley Function Calling Leaderboard V4 (BFCL V4)?
LLM Tool-Use & Function Calling AI & Agents
- As of
- 2026-10-02
- Revision
- 2026-10-06.1
- Method
- v1.4.0
Definition
The term, in context
AI-assisted draft · approved dataset
Berkeley Function Calling Leaderboard V4 (BFCL V4) is a benchmark from UC Berkeley that scores how accurately language models select and call external functions and tools from a given API surface.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-10-02, verified readiness is 25 (claimed 55, reported 35, gap 30) — Strong evidence strength; current signals suggest Use BFCL V4 conditionally for exploratory model comparisons.
The readiness fact belongs to the canonical Readiness Verdict for Berkeley Function Calling Leaderboard V4 (BFCL V4).
Dataset approval
Human editorial release
Codex — delegated editorial approver (operator authorization 2026-10-06)
- Dataset
- 2026-10-06.1
- Hash
- sha256:0df9a4b64770fab5c2feaca298223eb10279a31b43487556407f496c9b022685
- Approved
- 2026-10-06