AI News: Anthropic Closes $30B Round, Becomes World's Most Valuable AI Startup

Daily roundup for May 28, 2026 covering Anthropic's $900B valuation, Illinois passing historic AI safety legislation, and KPMG deploying Claude to 276,000 employees

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Anthropic Closes $30B+ Round, Surpasses OpenAI as Most Valuable AI Startup

Anthropic’s second $30 billion funding round of 2026 has officially closed, valuing the company above $900 billion and making it the world’s most valuable private AI startup — overtaking OpenAI’s $852 billion March valuation. Sequoia Capital, Dragoneer Investment Group, Altimeter Capital, and Greenoaks Capital Partners co-led the round, with each contributing roughly $2 billion.

The numbers reflect a staggering growth trajectory. Anthropic’s annualized revenue jumped from $87 million in January 2024 to $30 billion by April 2026, driven by Claude Code’s dominance in developer tooling, Claude Opus 4.7’s benchmark performance, and a string of enterprise deals with PwC, Blackstone, and KPMG. The company’s valuation has grown roughly 15-fold in 14 months.

For context, this is Anthropic’s second $30 billion raise this year alone — the Series G in February valued the company at $380 billion. That the valuation more than doubled in three months says as much about the pace of the AI investment race as it does about Anthropic’s business fundamentals.

Illinois Passes America’s Strongest AI Safety Bill

The Illinois House of Representatives voted 110-0 on May 27 to pass SB 315, the Artificial Intelligence Safety Measures Act — the first U.S. legislation to require independent third-party audits of frontier AI companies’ safety practices. Governor JB Pritzker has said he plans to sign it.

The bill goes further than anything California or New York has attempted. It mandates annual independent audits verifying that AI labs are actually adhering to their own safety standards, requires reporting of critical safety incidents, and establishes publication requirements for audit results. No other U.S. law currently requires an outside body to hold AI companies accountable to their own safety claims.

In a notable twist, both Anthropic and OpenAI publicly supported the legislation, while a trade group representing other AI companies opposed it. The split suggests that the largest labs may see mandatory audits as a competitive moat — something they can absorb but smaller competitors cannot. Colorado’s comprehensive AI law also takes effect on June 30, signaling a broader trend of states filling the federal vacuum on AI regulation.

KPMG Deploys Claude Across 276,000 Employees in 138 Countries

KPMG and Anthropic announced a global alliance embedding Claude into KPMG’s Digital Gateway platform — the internal system used for tax, legal, advisory, and client services. Every one of KPMG’s 276,000-plus employees across 138 countries will have access, with full Azure deployment targeted by September 2026.

This is the third Big Four firm to formalize an Anthropic partnership in roughly 60 days. Deloitte and PwC announced their own Claude integrations earlier, and the strategic sequencing is deliberate. EY is the notable holdout. When firms that collectively employ over a million consultants standardize on one AI provider, they’re not just adopting a tool — they’re creating a distribution channel that reaches into every Fortune 500 client engagement.

KPMG Global Chairman Bill Thomas framed the partnership around “security, trust, and governance rather than speed alone.” Initial focus areas include cybersecurity vulnerability detection and private equity portfolio analysis. The broader implication: the enterprise AI race is no longer about which model scores highest on benchmarks. It’s about who controls the deployment layer.

Quick Hits

  • OpenAI Launches DeployCo: OpenAI unveiled the OpenAI Deployment Company, a $4 billion consulting subsidiary backed by 19 investment firms including TPG, Goldman Sachs, McKinsey, and Capgemini. The unit embeds forward-deployed engineers inside customer organizations — a model borrowed from Palantir. OpenAI also acquired consulting firm Tomoro to staff it with 150 engineers from day one.

  • Gemini 3.5 Pro Confirmed for June: Google has confirmed a June 2026 launch for Gemini 3.5 Pro, expected to close the reasoning and long-context gap with Claude Opus 4.7 and GPT-5.5. If it hits 85%+ on GPQA Diamond, it becomes a serious enterprise research contender alongside Flash’s speed advantage.

  • AI Pro Se Lawsuits Surge: District courts across the U.S. are reporting 20-40% increases in pro se civil filings as self-represented litigants turn to ChatGPT and Claude to draft legal documents. The quality of filings has improved, but courts are consuming more resources processing the volume — an unintended consequence of making legal drafting accessible.

  • Samsung Union Fights AI Chip Pay Deal: Samsung’s labor union filed a motion in South Korean court to block a pay restructuring that would favor chip division workers over consumer electronics staff. The dispute reflects a broader tension as semiconductor operations become dramatically more profitable during the AI infrastructure buildout.

  • Gemini API Breaking Change: Google’s Interactions API schema became the default on May 26, with the legacy schema set for removal on June 8. Developers who haven’t migrated face a hard deadline.

Worth Watching

The Big Four AI land grab is reshaping enterprise software. Three of the four largest consulting firms now have formal Claude partnerships, while OpenAI has launched its own consulting subsidiary. The implication is that AI vendor selection for most Fortune 500 companies will increasingly be made not by internal engineering teams, but by the consultants already embedded in their operations. Control of the deployment layer — not model benchmarks — may decide who wins the enterprise AI market.

Illinois SB 315 could set the template for AI safety regulation nationwide. The unanimous vote and bipartisan support suggest that mandatory third-party audits are politically viable in a way that more aggressive AI restrictions are not. Watch for copycat bills in other states, and watch for how the audit requirements are actually implemented — the details of who qualifies as an “independent auditor” and what they’re required to examine will determine whether this is meaningful oversight or compliance theater.