Claude 4.5 Haiku on Humanity's Last Exam No tools

BENCHMARK RECORD: BR-002H45-019

Canonical URL: https://www.benchmarkregistry.org/records/BR-002H45-019

Benchmark scores may depend on benchmark version, evaluation configuration, model snapshot, and evaluator. Records sharing a benchmark name are not necessarily directly comparable.

Record

Record Identifier

BR-002H45-019

Record Status

ACTIVE

Created At

2026-07-13T06:16:56.525Z

Updated At

2026-07-13T06:16:56.525Z

Superseded By

Not applicable

Model

Official Model Name

Claude 4.5 Haiku

Model Identifier

ANTHR-H45

Organization

Anthropic

Model Family

Claude

Model Number

45

Tier

H

Model Snapshot

Unknown

Snapshot Label

Unknown

Provider Model Identifier

Unknown

Snapshot Date

Unknown

Benchmark

Benchmark Family

Humanity's Last Exam

Benchmark Version or Variant

No tools

Benchmark Version Reference

humanitys-last-exam/no-tools

Benchmark Organization

Center for AI Safety

Benchmark Status

ACTIVE

Result

Metric

Overall

Score

4.3%

Numeric Score

4.3

Evaluation Date

Unknown

Reported Date

2026-07-13

Evaluation Context

Configuration Reference

CFG-000006

Shots

Unknown

Reasoning Mode

non-reasoning

Reasoning Effort

Unknown

Pass Count

Unknown

Agent Scaffold

Unknown

Evaluation Harness

Unknown

Temperature

Unknown

Top P

Unknown

Max Output Tokens

Unknown

System Prompt Description

Unknown

Additional Configuration

None reported

Source and Reporting

Primary Source

Artificial Analysis Model Leaderboard ↗

Source Type

LEADERBOARD

Publisher

Artificial Analysis

Source Published Date

Unknown

Source Accessed At

2026-07-13T04:53:32.160Z

Report Type

INDEPENDENT

Evaluator

Artificial Analysis

Evaluator Type

INDEPENDENT_ORGANIZATION

Provenance

Record Status

This record is ACTIVE. Registry identifiers remain reserved when record status changes.