BenchmarksReading · ~3 min · 30 words deep

HellaSwag

HellaSwag is a knowledge benchmark tracked on BenchGecko. Sentence completion requiring commonsense reasoning about physical and social situations. Tests real-world understanding.

Built from BenchGecko data as of June 22, 2026 · updates when the data changes

HellaSwag leaderboard
TL;DR

HellaSwag is a knowledge benchmark tracked on BenchGecko. Sentence completion requiring commonsense reasoning about physical and social situations. Tests real-world understanding.

Level 1

Sentence completion requiring commonsense reasoning about physical and social situations. Tests real-world understanding.

Level 2

Scores are reported (%, maximum 100); higher is better. BenchGecko collects HellaSwag scores from Epoch AI and refreshes them daily; the leaderboard on this page shows the current top models.

Level 3

Compare models only on the same benchmark version and settings. A benchmark separates models well while scores are spread out; when top models bunch together near the maximum, it stops telling them apart.

The takeaway for you
If you are a
Researcher
  • ·knowledge benchmark (%, maximum 100)
  • ·Source: Epoch AI
If you are a
Builder
  • ·Useful if your workload is knowledge
  • ·Check the live leaderboard on /benchmark/hellaswag before choosing a model
If you are a
Investor
  • ·Labs cite benchmark results in launch announcements; check the source and version
If you are a
Curious · Normie
  • ·HellaSwag is a test of how good an AI is at knowledge
  • ·A higher score means better results on that kind of task
Sentence completion requiring commonsense reasoning about physical and social situations. Tests real-world understanding.