STEM & Reasoning Benchmark

GPQA Diamond

GPQA Diamond - Google-Proof Q&A benchmark for graduate-level scientific reasoning.

Category

STEM & Reasoning

Score type

percent

Scale

100%

higher is better

Models tested

57

What is GPQA Diamond?

GPQA Diamond is the 'diamond' subset of the Google-Proof Q&A benchmark — the hardest and cleanest part. The questions are written and checked by PhD scientists and are designed so that a skilled non-expert with full internet access can still barely get them right. The model has to answer graduate-level science questions with four multiple-choice options.

What does it test?

GPQA Diamond measures hard reasoning in science, technology, engineering and math. In detail, it checks:

  • expert-level physics, chemistry and biology knowledge
  • real reasoning instead of memorised question patterns
  • resistance to plausible distractors
  • reliability without web access (the questions are not Googleable)

How to read the score

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better.

Frequently asked questions

What is the GPQA Diamond benchmark?

GPQA Diamond is the 'diamond' subset of the Google-Proof Q&A benchmark — the hardest and cleanest part. The questions are written and checked by PhD scientists and are designed so that a skilled non-expert with full internet access can still barely get them right. The model has to answer graduate-level science questions with four multiple-choice options.

What does GPQA Diamond test?

GPQA Diamond mainly measures hard reasoning in science, technology, engineering and math. Concretely, it checks: expert-level physics, chemistry and biology knowledge; real reasoning instead of memorised question patterns; resistance to plausible distractors.

How is the GPQA Diamond score calculated?

The score is accuracy: the percentage of tasks answered or solved correctly. 100% means every task was solved perfectly; higher is better. The declared maximum score of this benchmark is 100.0.

Where do I get GPQA Diamond data and scores?

The official source is https://huggingface.co/datasets/Idavidrein/gpqa. The official benchmark page/reference is linked on this page. Every score on Open LLM Radar is also available as open data: download the scores JSON (http://open-llm-radar-api:8000/api/v1/benchmarks/gpqa-diamond/scores) or pull it directly from the Open LLM Radar API with any HTTP client.

Model scores 57 models tested

Reset
# Model Score Date Source Verified
26 Ornith-1.0-35B-A3B
Ornith AI
86.2%
19.08.2026 Report Unverified
27 Qwen3.6-35B-A3B
Qwen Team (Alibaba Cloud)
86%
16.04.2026 Qwen Team (official model card); KRAFTON re-eval (Raon-1-mini-preview card, gpt-5.6-luna harness): 83.2 Verified
28 Qwen3.5-27B
Qwen Team (Alibaba Cloud)
85.5%
16.04.2026 Qwen Team (official model card - comparison) Unverified
29 Ripple-65B Preview
Ricursive Intelligence
85.2%
— Report Verified
30 Gemma4-31B-it
Google
84.3%
16.04.2026 Qwen Team (official model card - comparison) Unverified
31 Gemma-4-31B
Google
84.3%
19.08.2026 Report Unverified
32 Kolibri-1
Aleph Alpha
84.3%
03.10.2026 Report Verified
33 Raon-1 mini
KRAFTON AI
84.3%
21.10.2026 Report Verified
34 Qwen3.5-35B-A3B
Qwen Team (Alibaba Cloud)
84.2%
16.04.2026 Qwen Team (official model card - comparison) Unverified
35 Muse-Glimmer-30B
Meta Superintelligence Lab
83.5%
01.08.2026 Meta Superintelligence Lab (official model card); KRAFTON re-eval (Raon-1-mini-preview card, gpt-5.6-luna harness): 82.6 Verified
36 Gemma4-26B-A4B
Google
82.3%
16.04.2026 Qwen Team (official model card - comparison); KRAFTON re-eval (Raon-1-mini-preview card, gpt-5.6-luna harness): 80.7 Unverified
37 Qwen3-235B-A22B
Qwen Team (Alibaba Cloud)
81.1%
01.02.2026 Report Unverified
38 GPT-OSS-120B
OpenAI
80.1%
08.08.2025 Report Verified
39 Gemma4-12B
Google
78.8%
02.07.2026 Report Verified
40 Qwen3.5-4B
Qwen
76.2%
01.02.2026 Report Verified
41 LFM2.5-24B-A2B
LiquidAI
74.42%
13.10.2026 Report Verified
42 Qwen3-30B-A3B-Thinking-2507
Qwen
73.4%
31.07.2025 Report Verified
43 GPT-OSS-20B
OpenAI
71.5%
05.08.2025 Report Verified
44 MiniCPM5-2B
OpenBMB
70.2%
— Report Verified
45 Qwen3-30B-A3B
Qwen
65.8%
29.04.2025 Report Verified
46 LFM3-1.7B
LiquidAI
63.37%
— Report Verified
47 Gemma4-E4B
Google
58.6%
02.07.2026 Report Verified
48 granite-4.2-3B
IBM
55.9%
— Report Verified
49 LFM2.5-2.6B
LiquidAI
55.8%
— Report Verified
50 Nemotron-3-Nano-4B
NVIDIA
51.3%
— Report Verified
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What now?

You've seen how models score on GPQA Diamond — here's what to do next.