A
Frontier Lab
Anthropic
Build reliable, interpretable and steerable AI systems; make the transition through transformative AI go well.
Valuation$965B
Funding$65B latest round
FlagshipClaude Fable 5.1
Founded2021 · San Francisco
96
Bright Sentience Score
Rank #2 of 23
What they're building
Claude and Claude Code have become central to enterprise and software development. Anthropic reported a $47B revenue run rate in May 2026 and raised $65B at a $965B valuation. Its 2026 lineup spans Claude Fable 5.1 (the frontier tier, with a 1M context and 128K output), Opus 5.5 for complex coding and long-running agents, and Sonnet 5.5 for everyday work.
Latest developments
- Claude Sonnet 5.5 (Sep 28, 2026): 1M context, billed as the best mix of speed and intelligence in the lineup.
- Claude Opus 5.5 (Sep 22, 2026) became the recommended starting point for complex coding and agents.
- Claude Fable 5.1 (Sep 1, 2026) launched as the frontier tier for difficult autonomous work.
Why it matters
Anthropic turned safety research into a commercial advantage: the models developers trust most for long, autonomous coding and agent work. Its revenue growth in 2026 has been the fastest of any frontier lab.
Key facts
Leader
Dario Amodei
FoundersDario Amodei, Daniela Amodei and five other former OpenAI researchers
PeopleDario Amodei (CEO), Daniela Amodei (President), Jared Kaplan (Chief Science Officer), Mike Krieger (CPO)
HQSan Francisco, USA
Latest modelClaude Sonnet 5.5 (Sep 28, 2026)
Valuation noteAfter a $65B raise; IPO filing June 1, 2026
InvestorsAmazon ($4B+), Google ($2B+), Lightspeed, Menlo Ventures, Salesforce Ventures and others
WebsiteNearby on the leaderboard