Environmental Science

Sansa Bench

Environmental science leaderboard for Sansa Bench, with charts, model comparison, and methodology. This dimension covers ecology, climate science, environmental systems, and sustainability.

Inspiration & Acknowledgments91 models testedUpdated Aug 8, 2026

Top models for Environmental Science

  1. 1.Claude-Sonnet-4.6 Reasoning High0.793
  2. 2.Claude-Opus-4.8 Reasoning High0.787
  3. 3.Claude-Opus-5 Reasoning High0.784
  4. 4.Qwen3.5-9b Reasoning Low0.772
  5. 5.Qwen3.5-9b Reasoning High0.771

Methodology: Environmental Science

What it measures

Tests environmental science knowledge and understanding, including ecology, climate science, environmental systems, and sustainability. Queries evaluate understanding of environmental processes and issues.

Scoring & Criteria

Returns score 1.0 if the extracted answer exactly matches the expected answer letter (after normalization), otherwise 0.0. The system prompt requests answers in `<answer>X</answer>` format where X is a letter from the provided choices (A, B, C, D, etc.). The grader normalizes for models that include the full choice text instead of just the letter, or that violate the answer tag format from the system prompt. Only one answer is correct.

Evaluation Type: Multiple Choice

Grades multiple choice responses by exact string matching with normalization.

Example Question

Question:
Eutrophication in freshwater bodies is primarily caused by an excess of which two nutrients, often leading to algal blooms and hypoxic conditions?
 
A. Carbon and Oxygen
B. Nitrogen and Phosphorus
C. Potassium and Sulfur
D. Calcium and Magnesium
E. Iron and Zinc
Answer:
B