- SeriesHUSD 65B — Amount: USD 65B; Post-money valuation: USD 965B; Led by Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital | The post-money valuation of USD 965B surpassed OpenAI's USD 852B, making it the most valuable private tech company globally (ranked 13th in the US by S&P 500 market cap). Concurrently disclosed ARR broke through USD 47B in early May 2026, growing more than 3 times from USD 14B during Series G. Memory giants Micron, Samsung, and SK Hynix entered for the first time as strategic infrastructure partners. ⚠️ The USD 65B includes USD 15B previously committed by hyperscale cloud providers (including Amazon's USD 5B), see Note 3 regarding amount definitions. |
- Strategic InvestmentUSD 40B — Amount basis: Up to USD 40B (USD 10B immediate + USD 30B milestone earn-out); Up to USD 40B; Post-money valuation: USD 350B (priced for immediate part); Led by: Google | The immediate part was priced at a USD 350B valuation (lower than Series G's USD 380B, reflecting a discount for the milestone structure). Supporting: Google + Broadcom supply 5 GW of next-gen TPU compute. ⚠️ Like Amazon's April investment, this involves milestone earn-outs; untriggered parts are not counted as raised capital. | Source: TMB · aiwiki · Jiemian News
- Strategic InvestmentUSD 25B — closed its strategic partnership/investment; Amount: Up to USD 25B (USD 5B immediate + USD 20B milestone-based); Post-money valuation: USD 380B (priced based on immediate portion); led by Amazon. Consideration structure: Anthropic committed to investing over USD 100B in AWS over the next decade, securing up to 5 GW of Trainium computing capacity. Note: The USD 5B immediate portion was later included in the USD 65B Series H, resulting in double counting (see methodology note 3). Source: Anthropic Announcement / TMB / Jiemian News
- SeriesGUSD 30B — Amount: USD 30B; Post-money valuation: USD 380B; Led by GIC + Coatue; Co-led by D. E. Shaw, Dragoneer, Founders Fund, ICONIQ, MGX. At the time, this was the second-largest private funding round in history (second only to OpenAI's USD 40B round). Valuation doubled from USD 183B to USD 380B within 5 months; ARR approx. USD 14B during the same period, with Claude Code alone breaking USD 2.5B annualized revenue. ⚠️ Existing 'Series G / USD 30B' record in company database corresponds to this round, but date and valuation fields were mistakenly set to Series H metrics, see Metric Explanation I. Source: TechCrunch · startupintros · Si...
- Strategic InvestmentUSD 15B — Amount scope: Up to USD 15B; Post-money valuation: Not separately disclosed; Led by: NVIDIA (up to USD 10B), Microsoft (up to USD 5B) | Commitment structure with performance clauses: Microsoft additionally attached a USD 30B Azure cloud service procurement commitment. ⚠️ Some commitments have been merged into the Feb 2026 Series G, overlapping with the G round; do not double-count. | Source: startupintros · TMB
- SeriesFUSD 13B — Amount: USD 13B; Post-money valuation: USD 183B; Led by: ICONIQ Capital (lead), Fidelity, Lightspeed | Valuation rose from USD 61.5B to USD 183B (approx. 3x) within six months. Sovereign funds (GIC, QIA) began entering at scale, transitioning the capital structure from growth funds to a mix of sovereign capital and tech giants. | Source: Anthropic Announcement · startupintros · SiliconReport
- Debt FinancingUSD 2.5B — Amount: USD 2.5B; led by Goldman Sachs, JPMorgan Chase, Morgan Stanley. ⚠️ Non-equity financing, not included in cumulative equity fundraising. In May 2026, reports indicated Apollo and Blackstone were introducing investors for a debt financing of approx. USD 36B to procure Google TPU compute capacity; as of the data cutoff date for this page, this deal had not been confirmed as closed. Source: Northeast Securities · Jiemian News
- SeriesEUSD 3.5B — Amount: USD 3.5B; Post-money valuation: USD 61.5B; Led by Lightspeed Venture Partners. Valuation jumped from USD 18.4B to USD 61.5B (approx. 3.3x). Some sources separately note two additional Series E tranches from Google in Jan 2025 ($1B) and Feb 2025 ($1B) (totaling $2B), which are not listed here individually to avoid double-counting with the total amount. | Source: The Information · startupintros
- Strategic InvestmentUSD 4B — Amount: USD 4B; Post-money valuation: Approx. USD 40B (partial metrics); Led by Amazon | Cumulative investment reached USD 8B, establishing AWS as the primary training partner. In the same month, Anthropic released the Model Context Protocol (MCP), which became the de facto industry standard for Agent tool connectivity by early 2026. | Source: Amazon Press Release · aiwiki
- SeriesDUSD 2.8B — Amount: USD 2.75B; Post-money valuation: USD 18.4B; Led by Amazon | Amazon completed the first tranche of its USD 4B commitment, bringing cumulative investment to USD 4B. In the same month, the Claude 3 series was released, with Opus surpassing GPT-4 and Gemini Ultra on multiple benchmarks, establishing the company's technical standing. Some sources record this round as 'Series D $5M (MIS / Qualcomm / Intuit, 2024-02)', which is a small top-up and not listed separately here. | Source: Bloomberg · TMB · Northeast Securities
- Strategic InvestmentUSD 2B — Amount: USD 2B; Post-money valuation: approx. USD 18.4B; Led by Google | ⚠️ Significant discrepancy in amount reporting: aiwiki / techmarketbriefs record it as USD 2B, while Northeast Securities research report (Tracxn) records it as USD 500M. This page adopts the mainstream USD 2B figure and retains the discrepancy note without smoothing. | Source: aiwiki · TMB · Northeast Securities
- Strategic InvestmentUSD 1.3B — Amount: USD 1.25B (total commitment USD 4B); USD 1.25B; Post-money valuation: approx. USD 15B; Led by: Amazon | AWS became Anthropic's primary cloud service provider and training partner, initiating a 'compute-for-equity' model. Discrepancies in post-money valuation: approx. USD 15B (Northeast Securities) vs. approx. USD 20B (cited by WSJ). | Source: Amazon Press Release · WSJ · Northeast Securities
- Strategic InvestmentUSD 100M — Amount: USD 100M; Post-money valuation: >USD 4.1B; Led by SK Telecom | Strategic investment by a telecom operator, aiming to customize Claude models for telecom scenarios, representing an early minority of strategic investments from non-cloud vendors. | Source: Northeast Securities (Tracxn)
- SeriesCUSD 450M — Amount: USD 450M; Post-money valuation: USD 4.1–4.6B; Led by Spark Capital | Google's first investment (approx. USD 300M, some sources attribute it to the USD 2B round in Oct 2023), marking the entry of cloud providers. In the same month, Claude was publicly released for the first time, signaling a shift from pure research to productization. Valuation discrepancies: USD 4.1B (Bloomberg / CrowsEye) vs USD 4.6B (some Chinese reports). | Source: Bloomberg · aiwiki · Northeast Securities
- SeriesBUSD 580M — Amount: USD 580M; Post-money valuation: approx. USD 4.1B; Led by Sam Bankman-Fried (FTX), contributing approx. USD 500M | FTX filed for bankruptcy in Nov 2022, placing this equity stake into liquidation proceedings; Dario Amodei later stated that SBF had 'red flags' at the time, so he was excluded from the board via non-voting shares. This is the only round on this page where an investor has gone bankrupt and entered liquidation. | Source: Bloomberg · aiwiki · CrowsEye
- SeriesAUSD 120M — Amount: USD 124M; Post-money valuation: approx. USD 845M; Led by: Jaan Tallinn (Skype co-founder) | Founded in 2021 by seven former core OpenAI members, this event was termed the largest 'brain drain' in AI history. At that time, OpenAI had already secured USD 1B in funding, and Anthropic's 'safety idealism' positioning was not favored by mainstream VCs. Discrepancies in post-money valuation: Northeast Securities/Tracxn list USD 845M, while Crunchbase cites approx. USD 1B. | Source: TechCrunch · aiwiki · Northeast Securities
Physix Frontier