SimpleQA A

AI benchmark · Knowledge

Domains
Knowledge
Tier
A why
Snapshot

Open benchmark ↗openai.com/index/introducing-simpleqa/

What is SimpleQA?

SimpleQA measures whether language models can accurately answer short, fact-seeking questions with single verifiable answers, testing factuality and hallucination.

Lineage

Benchmarks this one is built on and built from: versions, subsets, extensions and the indexes that combine them.

Derived benchmarks

  • Chinese-SimpleQA extension

    “Chinese SimpleQA measures how factually accurate language models are when answering short Chinese-language questions across 6 major topics and 99 subtopics.”
  • CSimpleQA extension

    “Chinese SimpleQA measures the factuality of language models answering short Chinese factual questions across 6 major topics and 99 subtopics.”
  • SimpleQA Net Score extension

  • SimpleQA Verified extension

  • Video SimpleQA extension

    “Video SimpleQA measures factual grounding of large video language models using short-form, multi-hop, knowledge-requiring, temporally grounded video questions.”

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.

  • 31 models scored
  • reported by OpenAI
  • in curated RL directories (2 pts)

On X · well regarded, moderate buzz, from 8 posts about SimpleQA in the last month

SimpleQA Verified is used to report frontier model results like Gemini 4 Argon's SOTA and by search API vendors touting accuracy; little criticism.

@synthwavedd ↗ · @MLBear2 ↗ · @ScarletKc ↗

How we got to tier A
  1. Adoption: 31 models scored; reported by OpenAI. Tier A.
  2. On X: well regarded, moderate buzz. “SimpleQA Verified is used to report frontier model results like Gemini 4 Argon's SOTA and by search API vendors touting accuracy; little criticism.” No move.
  3. In curated RL directories: 2 points, a floor of C.
  4. Confirmed: a line from its own site or paper places it.

A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.

Where SimpleQA sits

Its domain on the map, live. Hover a logo for its name; click to open it. Open it on the full map

The galaxy could not load. See every vendor on the board.

Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-11-05 snapshot.