Kraken Parent Payward Brings Anthropic's Mythos 5 Into Crypto Security

On April 7, 2026, Anthropic limited access to its Claude Mythos 5-class model, released as Mythos Preview, to selected Project Glasswing launch partners for defensive cybersecurity and committed up to $100 million in usage credits (Anthropic). As of August 19, 2026, Payward Inc., Kraken’s parent, is not listed among those partners, and it has issued no matching announcement. Reporting says major crypto exchanges including Coinbase and Binance sought access but were kept out in the initial phase (Clubic).

Project Glasswing’s remit and Mythos 5-class capabilities

Anthropic describes Project Glasswing as a defensive-security program where selected organizations test, find and remediate software vulnerabilities using Claude Mythos Preview. In company materials, Anthropic says Mythos Preview autonomously identified thousands of zero-day vulnerabilities, citing a 27-year OpenBSD flaw and a 16-year FFmpeg bug among examples. The firm also published internal benchmark results on the CyberGym vulnerability-reproduction task, where it reports Mythos Preview at 83.1% versus Opus 4.6 at 66.6% (Anthropic).

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