GPQA Diamond (GPQA-D)
We show this table for reference; we do not rank on it.
A display-only GPQA Diamond reference from provider comparison charts.
Benchmark score on GPQA-D — October 1, 2026
We compile the GPQA-D rows from provider self-reports and secondary reports. GPT-6 Astra leads the table at 96.0%, followed by Sakana Fugu-Ultra (95.5%) and Sakana Fugu (95.5%). We do not use these results to rank models overall.
GPT-6 Astra
OpenAI
Sakana Fugu-Ultra
Sakana AI
Sakana Fugu
Sakana AI
71 modelsKnowledgeCurrentDisplay onlyUpdated October 1, 2026
Benchmark score table (71 models)
ScoreAmong the reported GPQA-D rows, GPT-6 Astra is first at 96.0%. The third row is 0.5 points behind. The broader top-10 range is 2.5 points, so many of the published results sit in a relatively narrow band.
71 models have been evaluated on GPQA-D. The benchmark falls in the Knowledge category. GPQA-D is currently displayed for reference but excluded from the scoring formula, so it does not directly affect overall rankings.
About GPQA-D
Year
2026
Tasks
Graduate-level science questions
Format
Multiple choice questions
Difficulty
Graduate level
BenchLM stores GPQA-D separately from the standardized GPQA row when providers publish exact chart values that should not overwrite the core weighted benchmark.
Freshness and provenance
Version
GPQA-D 2026
Refresh cadence
Quarterly
Staleness state
Current
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
Questions
What does GPQA-D measure?
A display-only GPQA Diamond reference from provider comparison charts.
Which model scores highest on GPQA-D?
GPT-6 Astra by OpenAI currently leads with a score of 96.0% on GPQA-D.
How many models are evaluated on GPQA-D?
71 AI models have published results on GPQA-D in the BenchLM catalog.
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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