Anthropic is a San Francisco AI-safety and research company, founded in 2021 by former OpenAI researchers led by siblings Dario and Daniela Amodei, that develops the Claude family of large language models. As of mid-August 2026 its lineup spans Claude Haiku 4.5, Claude Sonnet 5, the everyday-default Claude Opus 5 (which replaced Opus 4.8 on July 24), and its most capable widely released model, Claude Fable 5 (plus the invitation-only Claude Mythos 5). Claude reaches customers through the claude.ai apps, the Claude API, enterprise and government plans, and Claude Code - its agentic coding tool, which runs at a $2.5B+ run-rate with 2M+ weekly active users - alongside the Claude Cowork 'AI coworker' and the June 2026 Claude Science research workbench, built on the ~$400M acqui-hire of ex-Genentech drug-discovery startup Coefficient Bio, that positions Anthropic in AI-driven pharma R&D. Anthropic differentiates on safety and interpretability research and runs one of the industry's largest multi-vendor compute footprints spanning Amazon (Project Rainier; Amazon's committed capital reached $33B in April 2026), Google (TPUs, up to $40B plus a 3.5 GW Broadcom-built expansion), AMD, CoreWeave, and newer data-center leases with TeraWulf, Riot Platforms and Volta Infra - and was reported on August 13, 2026 to be in talks to acquire AI-infrastructure startup Decart for roughly $6B. Annualized run-rate revenue topped $65B as of late July 2026 (up from ~$47B in May and ~$9B at the end of 2025; some IPO investors are modeling $100-120B by year-end), more than 1,000 customers now spend over $1M/year, and preliminary Q2 2026 revenue exceeded $11.5B with its first profitable quarter since founding. In May 2026 it raised a $65B Series H at a $965B valuation (secondary markets have since priced it above $1T-$1.2T) and confidentially filed for an IPO in June 2026; CFO Krishna Rao is now holding early investor meetings for a possible fall listing that some backers are modeling near a $2T valuation, though Anthropic itself has not set a target. On August 27, 2026 a San Francisco federal judge (Rita Lin) ruled the Pentagon's supply-chain-risk designation of Anthropic unlawful as First Amendment retaliation and arbitrary and capricious, writing that the measures were illegal and baseless; a separate D.C. Circuit case over a second designation remains pending, and the government is expected to appeal. The same day Anthropic opened a research preview of the Model Hardware Standard (MHS), a model-agnostic specification started with HHMI Janelia that lets AI agents operate lab and manufacturing hardware such as microscopes, liquid handlers and robotic arms, with a plan to open-source the standard after the preview.