Anthropic

Payward has joined Anthropic’s Project Glasswing, gaining access to Claude Mythos 5 for defensive cybersecurity work. The Kraken parent plans to use the model across its environments and disclose third-party open-source vulnerabilities to maintainers.

The S&P 500 is fading after a recent record as long-dated Treasury yields climb to 19-year highs and challenge broad equity appetite. AI-linked strength remains visible, but elevated Brent crude and tighter debt costs are making the market more selective.

Riot Platforms shares jumped more than 20% in pre-market trading after the bitcoin miner secured a 20-year artificial intelligence infrastructure agreement tied to Anthropic. The deal underscores how power-rich mining firms are repositioning data center assets toward AI workloads and longer-term contracted revenue.

A volunteer group of Bitcoin developers using AI tools has identified thousands of vulnerabilities across wallets, cryptographic libraries and infrastructure projects. The effort underscores both the defensive promise of AI-assisted security research and the growing risk that attackers can use the same methods.

Anthropic’s Claude Mythos Preview model identified a weakness in HAWK, a proposed post-quantum digital-signature scheme not used by Bitcoin or Ethereum. The result does not affect current crypto transactions, but it underscores why developers are weighing migration paths before quantum-capable threats arrive.

Claude Fable 5 helped produce a counterexample to the Jacobian conjecture, an 87-year-old math problem dating to 1939. The result adds fresh weight to the AI investment story that has increasingly shaped bitcoin trading and investor attention.

Bitcoin and other major cryptocurrencies declined after Beijing-based Moonshot AI unveiled Kimi K3, an open-weight coding model that outperformed leading closed systems on a key frontend coding leaderboard. The move pressured AI and semiconductor sentiment, reinforcing Bitcoin’s growing sensitivity to the broader AI capital spending cycle.

TeraWulf is leaning into AI hosting after securing a 20-year agreement with Anthropic that the company values at roughly $19 billion over its life. The company says power access, site control and long-term infrastructure ownership are becoming the decisive factors in the AI data center race.

Global investors are lining up for major artificial intelligence infrastructure listings, with SK Hynix and CXMT preparing large offerings that underscore the scale of capital chasing semiconductors and memory chips. The rush into AI linked equities is intensifying concerns that crypto assets, including Bitcoin, could remain sidelined as liquidity concentrates in technology infrastructure.

Anthropic is bringing back access to Claude Fable 5 and Claude Mythos 5 after U.S. export controls that paused the models in June were lifted at month-end. The rollout follows a review tied to a jailbreak finding that raised concerns about exploit-code generation.

Ventuals, the team behind OpenAI and Anthropic perpetual markets on Hyperliquid, is shutting down those markets and joining another ecosystem project. Trading has already halted and the contracts have settled.