Anthropic

claude-mythos-preview

proprietaryMultimodal
Benchmark Average (0–100)
86.6%
Average of non-null benchmark scores across all evaluated tasks.

BENCHMARK SCORES

GPQA94.6%

Graduate-Level Google-Proof Q&A. PhD-level multiple-choice questions in chemistry, biology, and physics. Scored by accuracy.

SWE-bench Verified93.9%

SWE-bench Verified evaluates models on real-world software engineering tasks from GitHub issues.

MMMLU92.7%

Multilingual MMLU tests knowledge across many languages and subject areas.

BrowseComp86.9%

BrowseComp tests web browsing comprehension, measuring ability to find and synthesize information from websites.

HLE64.7%

Humanity's Last Exam (HLE) is a multi-modal benchmark testing frontier knowledge across mathematics, humanities, and natural sciences with 2,500 expert-level questions.

OTHER BENCHMARKS

CharXIV-R
93.2%

MODEL INFO

Organization
Anthropic
Context Window
Release Date
Knowledge Cutoff
Parameters
License
proprietary

METADATA

Announcement Date
2026-04-07
Organization Country
US
Canonical ID