Anthropic's Claude Mythos model is a much bigger, more expensive, slower, but more powerful model compared to Opus.
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1
Videos
100%
Confidence
4/10/2026
First Seen
4/10/2026
Last Seen
Source Videos (1)
Claude Mythos and the end of software
Theo - t3․gg
1:06
Related Claims
Anthropic released a new AI model named Mythos, which is an upgrade from previous models like Sonnet, Opus, and Haiku.
tech1 videos
On SWEBench Pro, Claude Mythos achieved a 78% score, while Opus previously scored 53% and GPT 5.4 scored 57.7%.
other1 videos
Anthropic will not widely release its Claude Mythos Preview model because of its potential to cause harm if misused.
other4 videos
Anthropic has been using the Claude Mythos model internally since February 24th, 2026.
other1 videos
One of the few places that has access to Claude Mythos preview is Vertex on Google Cloud.
other1 videos