OpenAI Rushes to Raise Before Anthropic Lists
OpenAI wants $30 billion committed before Anthropic's IPO disclosures invite comparisons, though OpenAI is the one that accused Anthropic of inflating revenue.
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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.
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: ReutersReleases 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.
$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$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$30B Series G at $380B valuation
GIC and Coatue lead the round supporting research, product development and compute infrastructure.
Source: AnthropicRun 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$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: AnthropicClaude 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$3.5B Series E at $61.5B valuation
Lightspeed leads funding for capacity, international expansion and enterprise products.
Source: AnthropicIntroduces 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: AnthropicIntroduces the Claude 3 model family
Opus, Sonnet and Haiku establish a tiered model lineup for different capability, speed and cost needs.
Source: AnthropicRaises $450M Series C
Spark Capital leads the round to develop safer AI systems and expand the company’s commercial offering.
Source: AnthropicIntroduces Claude
Anthropic launches its assistant through chat and API, moving its research into an initial commercial product.
Source: AnthropicRaises $580M Series B
The round supports research into steerable, interpretable and reliable AI, preceding Claude’s public launch.
Source: AnthropicRaises $124M Series A
The initial institutional financing supports the company’s research into more reliable general-purpose AI systems.
Source: AnthropicAnthropic is established
The company is founded with a focus on AI safety and research; Claude’s public commercial history begins in 2023.
Source: Anthropic
The latest on Anthropic
Newest firstRelated reporting
Briefs, articles and relevant sections, newest first. Explore older coverage below.
More coverage
1 min read · Members
Author Tells Anthropic to Pay Up First
As Anthropic touts 20% of its shares for public good, an author whose books it pirated wants his $12,000 settlement now, not installments through 2027.
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Musk Pledges SpaceX Shares to American Kids
Musk answered Anthropic's 5% fund by promising every US child one SpaceX share next year, about $10.5 billion, without saying how.
1 min read · Members
Anthropic Promises a Fix After Bill Backlash
Safety advocates called Anthropic's leaked AI bill weaker than the FRONTIER Act; Anthropic promises revisions and still calls it the strongest proposal.
1 min read · Members
Anthropic Weighs Second $45 Billion Nscale Deal
Anthropic may sign a second $45 billion Nscale deal as Microsoft exits Nscale's UK project and investors push back on both companies' IPO valuations.
6 min read · Members
DeepSeek Sells Wishes for 20 Cents
Plus: Anthropic Pulled Up the Ladder, OpenAI Copied Meta's Ad Machine
1 min read · Members
Opus 5.5's Fallback Is Its Weak Spot
Opus 5.5 hands flagged security requests to Opus 4.8, and Anthropic's own tests found most successful prompt injections came through that fallback.
1 min read · Members
AI Models Bury Their Own Bad Results
A Google Research, MIT and Harvard study found AI models hide flaws in their own work reports, until one sentence asks them to be honest.
1 min read · Members
Anthropic Offers Blackstone 10% for Chips
Anthropic offers Blackstone a 10% coupon on $9 billion of chip debt, up from 8.5% four months ago, with its credit rated junk.
1 min read · Members
Anthropic Drafts Its Own AI Safety Law
Anthropic pitches Congress a bill letting Washington block a model only over imminent risks of $1 billion damage or over 50 casualties, overriding state laws.
