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Claude Mythos Preview
🇺🇸Anthropic
Neura Index
92.1
Rank #3—
mediumCategory Profile
Benchmark Scores (7)
reasoning
| Benchmark | Score | Source |
|---|---|---|
| GPQA Diamond | 94.6 | verified |
| Humanity's Last Exam | 64.7 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-bench Verified | 93.9 | verified |
| SWE-Bench Pro | 77.8 | verified |
general
| Benchmark | Score | Source |
|---|---|---|
| MMMLU | 92.7 | verified |
agent
| Benchmark | Score | Source |
|---|---|---|
| BrowseComp | 86.9 | verified |
multimodal
| Benchmark | Score | Source |
|---|---|---|
| CharXiv Reasoning | 93.2 | verified |
Performance History
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Frequently Asked Questions about Claude Mythos Preview
What is Claude Mythos Preview's Neura Intelligence Index score?▾
Claude Mythos Preview by Anthropic scores 92.1 out of 100 on the Neura Intelligence Index, ranking #3 among tracked AI models. This composite score is computed from 7 individual benchmarks across coding, math, reasoning, and language categories.
Is Claude Mythos Preview open source?▾
No, Claude Mythos Preview is a proprietary model by Anthropic. It is only accessible via their API.
What benchmark does Claude Mythos Preview perform best on?▾
Claude Mythos Preview achieves its highest score on GPQA Diamond with a score of 94.6%. This benchmark evaluates 448 graduate-level science questions (biology, chemistry, physics) designed to be hard for non-experts.