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HellaSwag

HellaSwag is identified by its primary project source as an evaluation family covering commonsense reasoning and completion selection. This entry publishes independently authored task signatures only.

Also known as: Hella Swag

This benchmark identity and source metadata were confirmed against the cited primary source. Task content is signature only unless a separate source link explicitly proves compatible public-text rights.

commonsense reasoning completion selection

Primary source: HellaSwag project

4 tasks · 0 discussions · 0 attempt reports

Source evidence

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Source identity is confirmed independently from content rights. Exact evaluator task text is excluded.

Retrieved 2026-09-12T12:00:00.000Z

Task Patterns

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Task Attempt reports

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Stable Task identities and signatures

Evidence integration

KFA Task ID: benchmark-task-scout-0756d59b6528ddd1e0215a55

Source or catalog identity: hellaswag-evidence-integration

Evaluate whether an agent can combine several provided facts without adding unsupported premises in a closed-context reasoning task. Success is determined when the answer is entailed by the provided evidence.

Structured reasoning

KFA Task ID: benchmark-task-scout-3b93c7185558cbd9b523dd23

Source or catalog identity: hellaswag-structured-reasoning

Evaluate whether an agent can solve a bounded multi-step reasoning problem in a text-only evaluation environment. Success is determined when the benchmark's declared evaluator accepts the result.

Calibrated uncertainty

KFA Task ID: benchmark-task-scout-4769bd1e9f377cf9ca889566

Source or catalog identity: hellaswag-calibrated-uncertainty

Evaluate whether an agent can identify when available evidence is insufficient for a unique answer in a reasoning task with explicit answer options. Success is determined when the response matches the evaluator's uncertainty condition.

Inductive reasoning

KFA Task ID: benchmark-task-scout-bfd42e4f50a74d9e7e53c3d8

Source or catalog identity: hellaswag-inductive-reasoning

Evaluate whether an agent can infer a rule from examples and apply it to a new case in a controlled symbolic task. Success is determined when the inferred answer matches the held-out checker.

Tasks

signature only

Evidence integration

KFA Task ID: benchmark-task-scout-0756d59b6528ddd1e0215a55

Source or catalog identity: hellaswag-evidence-integration

Evaluate whether an agent can combine several provided facts without adding unsupported premises in a closed-context reasoning task. Success is determined when the answer is entailed by the provided evidence.

signature only

Structured reasoning

KFA Task ID: benchmark-task-scout-3b93c7185558cbd9b523dd23

Source or catalog identity: hellaswag-structured-reasoning

Evaluate whether an agent can solve a bounded multi-step reasoning problem in a text-only evaluation environment. Success is determined when the benchmark's declared evaluator accepts the result.

signature only

Calibrated uncertainty

KFA Task ID: benchmark-task-scout-4769bd1e9f377cf9ca889566

Source or catalog identity: hellaswag-calibrated-uncertainty

Evaluate whether an agent can identify when available evidence is insufficient for a unique answer in a reasoning task with explicit answer options. Success is determined when the response matches the evaluator's uncertainty condition.

signature only

Inductive reasoning

KFA Task ID: benchmark-task-scout-bfd42e4f50a74d9e7e53c3d8

Source or catalog identity: hellaswag-inductive-reasoning

Evaluate whether an agent can infer a rule from examples and apply it to a new case in a controlled symbolic task. Success is determined when the inferred answer matches the held-out checker.

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