Anthropic says Mythos Preview achieves 93.9% on SWE-bench Verified, compared with 80.8% for Opus 4.6, and 77.8% on SWE-bench Pro, above 53.4% for Opus 4.6
Anthropic on Tuesday announced Project Glasswing, a sweeping cybersecurity initiative that pairs an unreleased frontier AI model …
Anthropic can use the reported SWE-bench gains over Opus 4.6 to support selecting Mythos Preview for Glasswing’s code-repair and vulnerability work.
The designated critical-software maintainers receive a potentially more capable coding agent, while other prospective users remain outside the initial access program.
Second-order effects
Competing AI and security vendors face pressure to show performance on difficult, independently interpretable software-engineering evaluations and to connect those results to real remediation workflows.
Maintainers adopting such tools will need to validate outputs in their own codebases; benchmark performance can accelerate triage, but does not itself establish that proposed fixes are safe to deploy.
Third-order effects
If restricted programs repeatedly translate strong coding-agent results into verified fixes, security tooling may shift from AI-assisted suggestions toward governed agent workflows with human review, auditability, and deployment controls.
The value of frontier coding models may increasingly be judged by reliable completion of costly operational tasks, not headline benchmark scores alone—a shift that favors assurance practices as well as raw capability.
The trend: This is one data point in the move from general coding-model benchmarks toward controlled, outcome-accountable AI deployment in critical software maintenance.
After seeing the Mythos benchmark scores, my Claude Opus 4.6 already feels outdated. Anthropic, can you just drop Mythos? I know you can't do it due to some “safety” reasons, but I'd happily pay $2,000/month to use it. AGI is already here - it's just not evenly distributed.
AI is coming for a lot of jobs. Just look at these performance metrics from Anthropic's latest model. Superhuman intelligence is going to be available to anyone. [image]
Anthropic is truly unstoppable. Mythos is crushing Claude Opus 4.6 across every serious agentic coding benchmark. It has found vulnerabilities in the Linux kernel, a 27-year-old vulnerability in OpenBSD, and a 16-year-old vulnerability in FFmpeg. No wonder folks at big labs [imag…