Claude Mythos Previewpreview
Anthropic · released Jul 29, 2026
Research preview of Anthropic’s next-generation model family.
97.4
Podium Score
#1 of 673
—
Arena Elo
80 t/s
Output Speed
$15/M
Output Price
$3/M in
—
Context Window
Scores by Source
Category Scores
Benchmark Results
GPQA Diamond94.6%
SWE-Bench Verified93.9%
CharXiv Reasoning93.2%
Multilingual MMLU92.7%
Browsecomp86.9%
SWE-Bench Pro77.8%
Humanity’s Last Exam64.7%
Model Details
| Release date | Jul 29, 2026 |
|---|---|
| Parameters | Not disclosed |
| License | Proprietary |
| Context Window | — |
| Input Price | $3/M |
| Output Price | $15/M |
| Output Speed | 80 t/s |
| Time to First Token | — |