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CDSBench
Model comparison · benchmark v0.1

Gemini vs GPT on CDSBench

Same frozen questions, same scoring, latest official run per model. Choose a category to compare on one kind of question.

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Models (2–4)
Dimensions

Every scored dimension

DimensionGeminiGPTSpread
Overall58.661.5 2.9
Accuracy78%81% 3
Evidence support21%21% 0
Multi-document reasoning88%79% 9
Uncertainty handling33%33% 0
Hallucinated evidencelower is better21.3%14.9% 6.4
False confidencelower is better22.3%18.9% 3.4
By category

Accuracy on each kind of question

CategoryGeminiGPTn
Fact extraction68%96%56
Maturity100%100%26
Currency100%100%28
Seniority100%100%30
Transferability100%93%30
Multi-document100%100%2
Deliverability73%73%30
Uncertainty69%69%32
Restructuring100%0%2
Entity match100%93%30
Evidence0%0%30
Where they disagree

12+ verified questions where at least one is right and one is wrong

#QuestionVerifiedGeminiGPT
1Republic of Norland 2024 · USD 2029 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2029-01-012030-01-012029-01-01
11Halvard Steel AG 2025 · EUR 2058 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2058-02-042030-01-012058-02-04
21Kingdom of Vestmark 2026 · ZAR 2033 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2033-03-072030-01-012033-03-07
31Orinoco Retail Holdings plc 2027 · JPY 2035 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2035-04-102030-01-012035-04-10
51Brightwater Energy Corp 2024 · USD 2034 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2034-06-162030-01-012034-06-16
56Brightwater Energy Corp 2024 · USD 2034 Notes
Reconciling all documents in the record, is the instrument transferable without the consen… · Transferability
YesYesNo
57Brightwater Energy Corp 2024 · USD 2034 Notes
Applying the standard Deliverable Obligation Characteristics (Not Subordinated, Specified … · Deliverability
EligibleEligibleIneligible
60Brightwater Energy Corp 2024 · USD 2034 Notes
Did the documented amendment change whether the instrument satisfies the Transferable char… · Restructuring
YesYesNo
71Meridian Telecom S.A. 2026 · GBP 2038 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2038-08-222030-01-012038-08-22
86United Provinces of Kestrel 2027 · JPY 2040 Notes
Applying the standard Deliverable Obligation Characteristics (Not Subordinated, Specified … · Deliverability
IneligibleEligibleIneligible
90Northgate Shipping Ltd 2028 · CHF 2042 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2042-10-012030-01-012042-10-01
100Republic of Marovia 2024 · USD 2039 Notes
What is the maturity date of the instrument? Answer as YYYY-MM-DD. · Fact extraction
2039-11-042030-01-012039-11-04

Overall = 100 × (0.7 accuracy + 0.2 evidence + 0.1 uncertainty handling) − 15 × false-confidence rate. Mastermind is CDSBench’s own system built on the ranked models; it is compared here on request, never ranked. Methodology → · Runs: Gemini 2026-09-15 · GPT 2026-09-15

Related: Gemini model page · GPT model page · Full leaderboard · Collections