Anthropic has just announced the completion of a $13 billion Series F funding round, pushing its post-money valuation to an astonishing $183 billion—nearly three times its valuation from its last raise in March.
This marks the second-largest private funding round in tech history, only behind OpenAI’s record-breaking $40 billion raise in March 2025.
🚀 Mega Funding Round: Who’s In?
The round was led by Iconiq, Fidelity Management & Research Co., and Lightspeed Venture Partners, with participation from Altimeter, General Catalyst, Coatue, and others.
Anthropic CFO Krishna Rao said:
“This financing reflects investors’ tremendous confidence in our financial performance and their commitment to our partnership, fueling our unprecedented growth trajectory.”
📈 From Zero to Billions: Claude’s Impact
Since the launch of its AI assistant Claude in March 2023, Anthropic’s valuation and business metrics have skyrocketed:
- By early 2025: revenue hit $1B.
- By August 2025: annualized revenue surpassed $5B, making Anthropic one of the fastest-growing tech companies in history.
- Customer base: 300,000+ enterprises, with large clients growing nearly 7x YoY.
💻 Claude Code: Developer Adoption on Fire
Anthropic spotlighted the breakout success of Claude Code, its coding-focused AI product:
- Launched widely in May 2025 → go-to tool for developers.
- Already generated $500M+ revenue.
- Usage surged 10x in just three months.
https://x.com/LouisKnightWebb/status/1962870556631478401
Still, competition is rising fast—OpenAI’s Codex Cli is rapidly gaining traction.
🌍 What’s Next: Scaling and Safety
Anthropic will use its fresh capital to:
- Deepen AI safety research
- Expand enterprise solutions for surging demand
- Grow globally with accelerated international expansion
⚡ The Backlash: Data, Limits, and Legal Fights
Despite record-breaking growth, Anthropic has been dogged by controversy:
- Data policy backlash: Default opt-in for training with 5-year retention (opt-out deadline Sept 28, 2025).
- Usage limits: New weekly/hourly quotas hit Pro/Max power users, sparking community frustration.
- Model debates: Users allege performance downgrades in older models to push upgrades.
- AI self-termination: Larger models end abusive conversations, criticized as “AI over user.”
- Legal battles: Facing lawsuits across publishing, music rights, and Reddit data.
🤖 Anthropic vs. OpenAI: Rivalry Heats Up
Founded by ex-OpenAI leaders including CEO Dario Amodei, Anthropic is now OpenAI’s fiercest competitor.
OpenAI, meanwhile, is preparing a $500B valuation stock sale and just announced a $1.1B acquisition of Statsig, appointing CEO Vijaye Raji as Chief Product & Technology Officer under Fidji Simo.
The AI arms race has never been more intense.