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Benchmark · Reasoning

GPQA: A Graduate-Level Google-Proof Q&A Benchmark (Diamond subset)

Graduate-level biology, physics and chemistry multiple-choice questions written to resist web lookup; Diamond is the 198-question highest-agreement subset.
ActiveMore benchmarks in ReasoningDefinition checked against sources

Definition

Short name
GPQA Diamond
Category
Reasoning
Introduced
2023
Metric
Accuracy (%)
Direction
Higher is better
Reference check
Confirmed against the paper or official site

Health review

As of

Active

No documented saturation, major flaw or retirement found as of the review date.

An Epoch AI post (Greg Burnham, May 2025) estimated roughly 8% of questions may be invalid and judged that saturation had not yet been reached. Artificial Analysis later removed GPQA Diamond from its Intelligence Index (v4.2) without stating a reason.

Source: epoch.ai — source for this health review (external site)

Caveats

Results on file

8 results in 1 comparability group (7 vendor-reported, 1 third-party). Results are only charted against others in the same group — the same benchmark and the same variant as named by the source. Last retrieved .

GPQA Diamond · No variant stated

8 results

The sources did not name a version or subset for these results.

Not directly comparable

These numbers mix provenance (7 vendor-reported, 1 third-party) from 6 different evaluators. Each source chose its own settings — reasoning effort, tools, harness or scaffold, number of attempts, grader — so a longer bar is a claim made under different conditions, not evidence that one model is better. None of these results has been reproduced by HARBAN.

GPQA Diamond · No variant stated: Accuracy (%)Horizontal bar chart of 8 results on a 0–100% scale, each as reported by its source under that source's own settings. Values: Gemini 3.1 Pro (Thinking (High)) 94.3%; Qwen3.8-Max 92.6%; DeepSeek-V4.1-Flash (max reasoning effort) 90.9%; Qwen3.8-27B 89.2%; Gemma 4 31B 84.3%; Muse Glimmer (High Reasoning) 83.5%; gpt-oss-120b (reasoning level high) 80.1%; Llama 4 Maverick 69.8%.Gemini 3.1 Pro (Thinking (High)): 94.3%
Gemini 3.1 Pro · Thinking (High)
94.3%
Qwen3.8-Max: 92.6%
Qwen3.8-Max
92.6%
DeepSeek-V4.1-Flash (max reasoning effort): 90.9%
DeepSeek-V4.1-Flash · max reasoning effort
90.9%
Qwen3.8-27B: 89.2%
Qwen3.8-27B
89.2%
Gemma 4 31B: 84.3%
Gemma 4 31B
84.3%
Muse Glimmer (High Reasoning): 83.5%
Muse Glimmer · High Reasoning
83.5%
gpt-oss-120b (reasoning level high): 80.1%
gpt-oss-120b · reasoning level high
80.1%
Llama 4 Maverick: 69.8%
Llama 4 Maverick
69.8%
Metric: Accuracy (%). Higher is better. The table below has every value with its settings and source.
GPQA Diamond · No variant stated — results as reported by their sources
ModelModel detailScoreSettings (as stated)SourceEvidence
Gemini 3.1 ProThinking (High)
94.3%No CI reported
No tools; Thinking (High); all Gemini scores pass@1 unless noted (methodology PDF)
Show excerpt for Gemini 3.1 Pro (Thinking (High)) on GPQA Diamond, No variant stated
“GPQA Diamond Scientific knowledge No tools 94.3%”

Retrieved

Qwen3.8-MaxNot stated by source
92.6%No CI reported
conditions not stated; column 'Qwen3.8-Max' on the Qwen3.8-2.4T-A95B card
Show excerpt for Qwen3.8-Max on GPQA Diamond, No variant stated
“GPQA Diamond | 92.0 | 92.6 | 94.1 | 92.4 | 92.6 (last col = Qwen3.8-Max)”

Retrieved

DeepSeek-V4.1-Flashmax reasoning effort
90.9%No CI reported
Pass@1; max reasoning effort (reasoning_effort=100), temperature=1.0, top_p=0.95; last column = DS-V4.1-Flash
Show excerpt for DeepSeek-V4.1-Flash (max reasoning effort) on GPQA Diamond, No variant stated
“GPQA Diamond (Pass@1) | 93.4 | **94.1** | 92.9 | 88.1 | 92.4 | 89.9 | 90.9”

Retrieved

Qwen3.8-27BNot stated by source
89.2%No CI reported
conditions not stated
Show excerpt for Qwen3.8-27B on GPQA Diamond, No variant stated
“GPQA Diamond | 89.2 | 87.8 | 90.3 | 83.5 | 91.3 (first col = Qwen3.8-27B)”

Retrieved

Gemma 4 31BNot stated by source
84.3%No CI reported
instruction-tuned model; no other conditions stated
Show excerpt for Gemma 4 31B on GPQA Diamond, No variant stated
“| GPQA Diamond | 84.3% |”

Retrieved

Muse GlimmerHigh Reasoning
83.5%No CI reported
Full 198-question set; high reasoning; temperature 1.0, top_p 0.95, top_k 64. The model card marks the row “(AA)”; Meta’s linked methodology report states GPQA Diamond results are sourced from Artificial Analysis.
Show excerpt for Muse Glimmer (High Reasoning) on GPQA Diamond, No variant stated
“| GPQA Diamond (AA) | 83.5 | **85.7** | 84.2 |”

Retrieved

gpt-oss-120breasoning level high
80.1%No CI reported
no tools; reasoning level high (Table 3; columns low/medium/high)
Show excerpt for gpt-oss-120b (reasoning level high) on GPQA Diamond, No variant stated
“GPQA Diamond (no tools) 67.1 73.1 80.1”

Retrieved

Llama 4 MaverickNot stated by source
69.8%No CI reported
0-shot; instruction-tuned model
Show excerpt for Llama 4 Maverick on GPQA Diamond, No variant stated
“GPQA Diamond 0 accuracy 50.5 49.0 57.2 69.8”

Retrieved

Vendor-reported:
Published by the organisation that built the model. Not independently reproduced.
Third-party:
Measured and published by an independent evaluator.

Definitions, health labels and caveats are summarised in our own words from the linked sources. Scores are reproduced exactly as each source published them; see the methodology for how we record and group them.

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