Anthropic rolls out Claude Opus 4.8 and teases broader Mythos release in coming weeks

Anthropic has closed a $65 billion Series H round at a $965 billion post-money valuation, marking what could be the AI startup's final private fundraise before a highly anticipated IPO.

Anthropic's latest flagship AI model Claude Opus 4.8 arrives with sharper reasoning, tighter alignment, and a price tag that hasn't budged.

Anthropic signaled that broader access to its controversial Claude Mythos AI models may arrive "in the coming weeks" after limited testing.

Anthropic raised $65 billion in new fund-raising that put its value at $900 billion, ahead of OpenAI’s last valuation of $730 billion, as the companies duel for A.I. dominance.

Here’s why Anthropic and OpenAI are on board with Illinois safety testing.

The new Opus model comes with a tool called Dynamic Workflows, for coordinating swarms of subagents.

The new system, called Opus 4.8, tops industry standard benchmarks in areas related to computer programming.

Anthropic is releasing Claude Opus 4.8 on Thursday, and the company is touting the model's "honesty." According to Anthropic, it trains "all [its] models to be honest - for instance, to avoid making claims that they can't support." But it notes that "a general problem with AI models is that they sometimes jump to conclusions, confidently presenting their work as making progress despite thin evidence." The AI lab claims that early testers have found that Opus 4.8 "is more likely to flag uncertainties about its work and less likely to make unsupported claims." In the company's evaluations, Opus 4.8 is "around 4x less likely than its predeces … Read the full story at The Verge.