# FACTS Grounding V1 leaderboard

external benchmark

> Every figure below is reproduced as its upstream source published it: nothing is modelled, estimated, interpolated or converted. `Unavailable` means no source published the value — it is never a zero. Each value carries its evidence state and the date it was observed.

Page: https://modelscale.dev/leaderboards/benchmarks/external-facts-grounding-v1

Every model the catalog carries a published FACTS Grounding V1 value for, ranked by that value.

## Benchmark record

| Field | Value |
| --- | --- |
| Category | external |
| Measure | Document-grounded answering with an ensemble of three judges |
| Tasks | 1,719 examples: 860 public and 859 private |
| Difficulty | — |
| Published by | [FACTS Grounding V1 methodology](https://arxiv.org/abs/2501.03200) |

The archived FACTS Grounding V1 protocol tests factual responses grounded in supplied documents. Its original judge setup and results remain separate from Grounding V2.

## FACTS Grounding V1 ranking

No model in the catalog has a published FACTS Grounding V1 score. The benchmark is defined by FACTS Grounding V1 methodology, but the catalog carries no value for it yet. An absent value is shown as absent here rather than as a zero.

Rows are ordered by the value the source published, highest first. The source does not state whether a higher value is the better result, so this document does not either: for a benchmark that measures a rate of failure, read the table from the bottom.