AI Sector Daily Digest — May 29, 2026

Five stories from the past 24 hours: Anthropic raises $65B and ships Opus 4.8, Asana buys StackAI, Glean hits $300M ARR, CNN sues Perplexity for verbatim copying, and Illinois passes a broad AI safety bill.

Anthropic has raised $65 billion at a $965 billion post-money valuation, the company confirmed May 28. The round was co-led by Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue, and D1 Capital Partners, with additional participation from Baillie Gifford, Blackstone, Brookfield, DST Global, and Fidelity. Samsung, SK Hynix, and Micron also joined as strategic infrastructure partners. Fifteen billion dollars of the total represents previously committed hyperscaler funds, including $5B from Amazon announced in April.

Anthropic said it will use the capital to "advance safety and interpretability research, expand compute to meet growing demand for Claude, and scale the products and partnerships our customers rely on." The company's run rate revenue crossed $47 billion earlier this month, and The Wall Street Journal reported it expects a 130% revenue surge to reach its first operating profit. The round is described by participants as likely Anthropic's last private raise before an IPO.

OpenAI last raised $122 billion in March at an $852 billion post-money valuation; SpaceX/xAI is targeting a $2 trillion IPO valuation.

Anthropic released Claude Opus 4.8 on May 28, 41 days after Opus 4.7 — a faster cycle than normal, coming after mixed early reception for 4.7 and model releases from OpenAI Codex and Google Gemini Flash in the same window.

The model's two headline features are honesty calibration and Dynamic Workflows. On honesty: internal and partner testing found Opus 4.8 "more likely to flag uncertainties about its work and less likely to make unsupported claims." Bridgewater Associates said the biggest difference was the model's tendency "to proactively flag issues with the inputs and outputs of an analysis, something other models routinely missed." The company cites a roughly 4× reduction in undetected code defects versus the prior version.

Dynamic Workflows, now in research preview, lets Opus 4.8 coordinate hundreds of parallel subagents within Claude Code — Anthropic says the model can now run "codebase-scale migrations across hundreds of thousands of lines of code from kickoff to merge." Pricing is unchanged from Opus 4.7.

The company also signaled that its Mythos cybersecurity model — withheld since April due to safety concerns — could reach general availability "in the coming weeks."

Asana acquired StackAI for $75 million, the company announced May 28 alongside its quarterly earnings call. StackAI co-founders Tony Rosinol and Bernard Aceituno will join Asana.

StackAI, a Y Combinator Winter '23 company, built workflow automation agents that integrate with Salesforce, Slack, and Google Workspace. It had raised just under $20 million total, including a $16 million Series A from Gradient, Epakon Capital, and Vercel CEO Guillermo Rauch.

Asana framed the deal as part of its push to become "the operating system for human-agent teams." CEO Dan Rogers said StackAI would let customers "agentify the most complex business processes end-to-end." Asana has already released AI Studio and the AI Teammates product line; StackAI's deeper no-code tooling is intended to extend that coverage.

The company has lost more than half its market cap since ChatGPT launched and saw founder Dustin Moskovitz step down as CEO in March 2025. Revenue has kept growing, and this deal is the clearest sign yet that its current leadership is betting on agentic workflow tooling to rebuild equity value.

Glean said it has reached $300 million in annual recurring revenue, up from $100 million 15 months ago. The seven-year-old enterprise AI search company was last valued at $7.2 billion after a $150 million Series F in June 2025.

CEO Arvind Jain told TechCrunch that Glean's AI search uses a "context graph" — connections to enterprises' internal tools — to cut AI token costs as well as surface relevant results. "If you connect your AI to Glean, it gives you all the information that you need to do your work, and that results in AI consuming far fewer tokens," he said. That cost-reduction argument has become the company's main pitch as enterprise AI budgets face scrutiny.

Customers include Databricks, Reddit, Pinterest, and Samsung. Competitors now include Google, Microsoft, OpenAI, Anthropic, Salesforce, and Atlassian.

One caveat: Glean uses both subscription and consumption-based pricing, so a portion of the $300M figure reflects an annualized revenue run rate rather than a pure recurring commitment.

CNN v. Perplexity. CNN filed suit against Perplexity AI in New York federal court on May 28, alleging the AI search startup scraped CNN's copyright-protected content without authorization and produced verbatim replicas. CNN's complaint cites a test in which supplying only the headline of a paywalled article caused Perplexity's tool to reproduce large portions of the text word-for-word. CNN also alleges Perplexity deployed unidentified crawlers that ignored the publisher's blocking measures. The two companies had negotiated a content licensing deal in late 2025 but talks broke down; CNN issued a cease-and-desist in November 2025 that Perplexity did not answer. CNN is seeking damages and a permanent injunction. Perplexity responded: "You can't copyright facts." CNN joins the New York Times, News Corp, and several other publishers in suing Perplexity.

Illinois AI safety bill. Illinois Governor JB Pritzker is expected to sign a state AI safety bill that goes broader than comparable laws in New York and California. The bill requires AI companies to submit to independent safety audits and includes whistleblower protections for employees who report unsafe AI systems. The legislation covers a wider range of AI deployments than prior state frameworks, according to The Verge.