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Verification register AI & Agents

Readiness verdict

Berkeley Function Calling Leaderboard V4 (BFCL V4)

A dated reading of what is claimed, reported, and independently verified in the current evidence.

As of
2026-06-28
Revision
1
Method
v1.0.0

Current reading

The readiness gap, in one scan

AI-assisted assembly · derived results

Claimed
90

Public ambition and stated capability

Reported
88

Observed practitioner reporting

Verified
83

Independently supported evidence

Gap
+7

Claimed minus verified

Evidence strength Strong

Decision

What the current evidence supports

Human editorial judgment · 2026-06-28

Adopt with guardrails

Why
It is the de-facto primary academic benchmark for function calling, actively maintained (updated April 2026) with realistic agentic categories — reliable as a comparative signal, provided we account for the ~75% ceiling and the FC-vs-prompt methodology split rather than treating scores as production readiness.
Next
Use BFCL V4 as one input when choosing a tool-calling model for agent work, but pin the commit/package version and read sub-category scores (multi-turn, agentic, format sensitivity) rather than just the headline number; pair with our own task-representative evals.

Constraints

Blockers

No named blocker is present in the current public projection.

Evidence summary

Derived counts

AI-assisted assembly

Total
6
Tier 1
0
Tier 2
2
Tier 3
4
Supports
2
Contradicts
1
Context
3
Latest observed
2026-06-01

Counts and dates only. Raw signals, private excerpts, trust records, and internal corpus material are not published here.

Publication record

Revisions

Initial public reading

This is the initial public reading. No earlier readiness change is recorded.

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