Anthropic

Reporting and context on Anthropic, with a closer look at the decisions and developments that matter.

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At a glance

AI research company behind Claude, with an emphasis on the reliability and safety of AI systems. Coverage follows its models, research, products and business.

Focus: Claude; AI safety and research
Reference: Anthropic

Reviewed 19 October 2026. Dates retain the precision of the source; retrospective disclosures are identified in the event. Company and product revenue run rates overlap and must not be added together.

Company milestones

Revenue, funding, product launches and major company events, newest first. Expand the earlier milestones for more history.

Oct
2026
Reported Q3 revenue reaches $16.8B
Reuters cites investor-day attendees reporting Q1 revenue of $4.7B, Q2 of $11.6B and Q3 of $16.8B. These are reported quarterly totals, not ARR or audited public-company earnings.
Source: Reuters
Sep
2026
Releases Claude Opus 5.5
Anthropic updates the model family with a focus on capable, lower-cost work, following its earlier Claude 4 and 5 generations.
Source: Anthropic

Show earlier milestonesHide earlier milestones2026–2021 · 14 milestones

Earlier revenue, financing and company milestones.

May
2026
$65B Series H; run rate exceeds $47B
Anthropic announces $65B in financing at a $965B post-money valuation and says its revenue run rate crossed $47B earlier in May.
Source: Anthropic
Feb
2026
$14B company run rate; Claude Code exceeds $2.5B
The company reports $14B in annualized revenue, with Claude Code above $2.5B. The product figure is included in the company business, not additional company revenue.
Source: Anthropic
Feb
2026
$30B Series G at $380B valuation
GIC and Coatue lead the round supporting research, product development and compute infrastructure.
Source: Anthropic
Sep
2025
Run rate grows from about $1B to over $5B
Anthropic discloses approximately $1B at the start of 2025 and over $5B by August; Claude Code separately exceeds $500M. These are annualized snapshots.
Source: Anthropic
Sep
2025
$13B Series F at $183B valuation
ICONIQ leads the financing, co-led by Fidelity and Lightspeed, as Anthropic reports over 300,000 business customers.
Source: Anthropic
May
2025
Claude 4 and Claude Code general availability
Opus 4 and Sonnet 4 arrive alongside the broader release of Claude Code, extending the platform into agentic software development.
Source: Anthropic
Mar
2025
$3.5B Series E at $61.5B valuation
Lightspeed leads funding for capacity, international expansion and enterprise products.
Source: Anthropic
Jun
2024
Introduces Claude 3.5 Sonnet and Artifacts
The release combines a new model with a workspace for generated content, broadening Claude beyond a chat-only interface.
Source: Anthropic
Mar
2024
Introduces the Claude 3 model family
Opus, Sonnet and Haiku establish a tiered model lineup for different capability, speed and cost needs.
Source: Anthropic
May
2023
Raises $450M Series C
Spark Capital leads the round to develop safer AI systems and expand the company’s commercial offering.
Source: Anthropic
Mar
2023
Introduces Claude
Anthropic launches its assistant through chat and API, moving its research into an initial commercial product.
Source: Anthropic
Apr
2022
Raises $580M Series B
The round supports research into steerable, interpretable and reliable AI, preceding Claude’s public launch.
Source: Anthropic
May
2021
Raises $124M Series A
The initial institutional financing supports the company’s research into more reliable general-purpose AI systems.
Source: Anthropic
2021
Anthropic is established
The company is founded with a focus on AI safety and research; Claude’s public commercial history begins in 2023.
Source: Anthropic