Anthropic AI Updates: April 4, 2026

1. Anthropic Acquires Biotech Startup Coefficient Bio for ~$400M

Anthropic. Anthropic acquired stealth biotech AI startup Coefficient Bio in a ~$400M stock deal. The team of fewer than 10 employees, founded by ex-Genentech and Prescient Design researchers, was building an AI platform for drug R&D planning, clinical regulatory strategy, and identifying new drug opportunities. The team will join Anthropic’s healthcare and life sciences group. Source

2. Anthropic Mythos Model Raises Cybersecurity Alarms

Anthropic. CNN reported that Anthropic has privately warned government officials that its unreleased Mythos model can exploit software vulnerabilities at an unprecedented pace. Anthropic is providing select organizations with early access to test defenses before a broader release. Cybersecurity experts described the capability as a potential “watershed moment” that could accelerate both offensive and defensive cyber operations. Source

3. Anthropic Pre-IPO Shares See Surging Demand at $380B Valuation

Anthropic. Demand for Anthropic’s pre-IPO shares is outpacing supply, with buyers deploying $2B while $600M in OpenAI shares remain unsold. Anthropic is valued at $380B following its Series G and is targeting an IPO as early as October 2026 with Goldman Sachs and JPMorgan as leads. A potential SpaceX IPO could compete for the same investor capital. Source

4. Anthropic Forms AnthroPAC for AI Policy Engagement

Anthropic. Anthropic filed to create “AnthroPAC,” an employee-funded political action committee with individual contributions capped at $5,000 per year. The bipartisan PAC will support federal candidates involved in AI policy ahead of the midterm elections. The move comes as Anthropic navigates an ongoing Pentagon contract legal battle and increasing federal AI regulation activity. Source

5. Claude Subscriptions Cut Off for Third-Party Tools Like OpenClaw

Anthropic. Effective April 4, Claude subscriptions no longer cover usage through OpenClaw and other third-party harnesses. Users must switch to pay-as-you-go “extra usage” billing or use the API directly. Head of Claude Code Boris Cherny stated that subscriptions “weren’t built for the usage patterns of these third-party tools,” citing outsized strain on compute resources. Source

6. Claude Code v2.1.92 Adds Bedrock Setup Wizard and Per-Model Cost Breakdown

Anthropic. Claude Code v2.1.92 shipped with an interactive Bedrock setup wizard, per-model and cache-hit cost breakdown for subscribers, Remote Control session names with hostname prefix, an interactive /release-notes version picker, and a forceRemoteSettingsRefresh policy setting. The Write tool’s diff computation is 60% faster for large files. The /tag and /vim commands were removed in favor of a /config editor mode toggle. Source