BBQ A
AI benchmark · Language-understanding
- Publisher
- Anthropic System Card
- Domains
- Language-understanding
- Tier
- A why
- Snapshot
What is BBQ?
Bias Benchmark for Question Answering results reported in Anthropic's Claude Fable 5 and Claude Mythos 5 system card.
Tier A
A
Widely used: a lab reports it, or 50 or more models are scored on it.
How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.
- 7 models scored
- reported by Anthropic
- in curated RL directories (1 pt)
On X · mixed, low buzz, from 2 posts about BBQ in the last month
Little discussion; one post cites Anthropic's account of BBQ implementation pitfalls, where models scored unbiased by not answering, as a caution about evaluation validity.
How we got to tier A
- Adoption: 7 models scored; reported by Anthropic. Tier A.
- On X: mixed, low buzz. “Little discussion; one post cites Anthropic's account of BBQ implementation pitfalls, where models scored unbiased by not answering, as a caution about evaluation validity.” No move.
- In curated RL directories: 1 point, a floor of none.
- Not yet confirmed by a line from its own site or paper.
A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.
Not on the map yet: no line from its own site or paper places it in a domain.
Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-10-11 snapshot.