Timeline

Anthropic confidentially submits draft S-1 to the SEC, signaling preparation for a public offering.

Raises $65B Series H at $965B post-money valuation. Launches Claude Opus 4.8 with major agentic and coding improvements.

Launches multi-organization software security initiative. Introduces Claude Design for visual prototyping.

Launches Claude 4 with significant capability improvements across reasoning and coding.

Dario publishes essay framing AI development as a civilizational rite of passage requiring responsible stewardship.

Anthropic raises $3.5B in new funding, reaching $61.5B valuation. Daniela leads fundraising and investor relations. Total funding: $13.7B.

Dario publishes essay on AI's potential positive impacts on science, health, and society.

Releases Claude 3.5 Sonnet with improved performance at lower cost than Opus.

Launches Claude 3 family: Opus, Sonnet, Haiku. Achieves top benchmark scores.

Amazon announces up to $4B investment. Anthropic publishes the Responsible Scaling Policy, shaped by both Dario (technical) and Daniela (governance).

Releases Claude AI assistant to public via API and consumer product.

Dario and team publish research on training AI systems using principles rather than human feedback.

Launch AI safety company with $124M initial funding. Based in San Francisco. Dario as CEO, Daniela as President.

Dario and Daniela depart OpenAI along with several researchers to start Anthropic.

Becomes VP of Operations at OpenAI after four years at Stripe.

Becomes VP of Research. Works on GPT development and AI safety research.

VP of Business Development & Operations. Builds operational experience at a high-growth tech company.

Research scientist working on speech recognition and deep learning under Andrew Ng.