Anthropic eyes a $900 billion valuation and an October 2026 IPO: Goldman Sachs, JPMorgan and Morgan Stanley line up for another $60 billion

On April 30, 2026, TechCrunch and CNBC reported that Anthropic is in talks with investors for a fresh $50 billion round at a valuation of $900 billion — a level that would top OpenAI ($852 billion since its $122 billion round in early 2026). In parallel, Anthropic is working with Goldman Sachs, JPMorgan Chase and Morgan Stanley on an October 2026 IPO aiming to raise an additional $60 billion. The final decision drops in May. If it lands, Anthropic becomes the world's most valuable private AI company — and the IPO of the year.

From $380B to $900B in two months

The pace of revaluation has no recent equivalent in venture capital history.

3.3x in two months. For perspective: Anthropic multiplied its valuation 2.6x in eight weeks. That's faster than OpenAI's 2024 jump from $157B to $500B and faster than xAI's path from $70B to $200B.

As we covered when Dario Amodei rejected the $800B valuation, Amodei had blocked the prior wave of preemptive offers. The position has shifted: with ARR moving from $30B toward a run rate of close to $40 billion per multiple internal sources cited by Bloomberg, Anthropic's board now considers that closing a $900B round now is less risky than waiting for the October IPO.

Why a double move (private round + IPO)

At first glance, it looks contradictory: why raise $50B privately now and $60B more publicly in 5 months? Three reasons:

1. Better dilution control. A private round at $900B dilutes ~5.5% of cap. A $60B IPO (probably at $1.0-1.2T valuation) dilutes another 5-6%. Sequencing both keeps total dilution at ~11% for $110B in cash.
2. Public-market price discovery. The VCs writing into the private round (Sequoia, Lightspeed, Nvidia, GIC, Mubadala, and likely Amazon extending its $25B investment) act as price discovery for the IPO. The private round sets a floor.
3. Compute war. Anthropic needs massive capex to lock in H300 GPU and Trainium 3 capacity through 2028. Anthropic's compute trajectory, already covered in our AWS Trainium $100B partnership coverage, requires at least $70B of commitments over the next 18 months.

The October 2026 IPO: the first real public-market AI battle

If the timeline holds, Anthropic's IPO would be:

• The largest tech IPO ever: $60B raised tops Aramco's $25B in 2019 in the tech bracket (Aramco is non-tech)
• The first public test of a pure-play AI lab: OpenAI is still private, xAI is still private, Mistral is too small. Anthropic clears the path
• A signal to regulators: public markets will price for the first time an AGI-grade actor. Pricing will get scrutinized

The bank stack is heavy: Goldman Sachs (lead), JPMorgan, Morgan Stanley. The classic mega-tech IPO setup (Facebook 2012, Alibaba 2014). Compare with OpenAI, which has not (yet) announced a syndicate for an IPO.

The skeptics' arguments

Not everyone is convinced by the pace. Three sharp critiques are circulating:

1. Enterprise revenue concentration

Per internal numbers shared with investors (relayed by The Information), about 40% of Anthropic's ARR comes from 10 enterprise customers. Losing Lockheed, NEC Japan or Stripe could meaningfully hit the trajectory. By comparison, OpenAI has more diluted enterprise concentration but more B2C risk (ChatGPT churn).

2. The technical moat vs OpenAI and Google

Claude Opus 4.7 leads SWE-Bench (87%) per our release coverage, but OpenAI's GPT-5.5 takes the lead on other benchmarks and Gemini 2.5 Pro is competitive. The question: in 5 years, is Anthropic still the leader or one of five? Public investors will be less patient than VCs.

3. Regulatory risk

The EU AI Act is rolling into application and could limit European deployments. More worrying on the US side: the White House revived the mandatory "license model" idea for frontier labs in March 2026, which would slow product cycles. Anthropic, traditionally more politically exposed (recall the temporary Pentagon ban from March 2026), remains vulnerable.

Why $900B still makes sense

On the other side, several arguments back the current valuation:

• $40B ARR run rate: at this level, the price/sales ratio drops to ~22, comparable to peak-2021 SaaS bubble but coherent given the growth (4.4x in 12 months)
• Gross margins: Anthropic discloses little, but sources estimate 60-65% gross margin on Claude API, rising with Trainium scaling
• Enterprise lock-in: Claude Code in NEC Japan's 30,000-employee dev pipeline, Lockheed Martin, and soon Adobe and Blender, creates a product dependency hard to walk away from
• Strategic investor network: Amazon, Google, and likely Nvidia. This triple compute dependency is a hedge OpenAI doesn't have (Microsoft alone)

What it changes for the AI ecosystem

Anthropic going public will trigger several waves:

1. Pressure on OpenAI

OpenAI was expected to IPO in 2027. If Anthropic ships in October 2026, OpenAI will be forced to accelerate to keep the "public leader" narrative. Sam Altman has already faced waves of attacks on the IPO trajectory, and a forced acceleration could amplify internal pressure.

2. Dilution of the AI VC "founder dream"

With an Anthropic IPO, VCs get their first major AI liquidity event. That triggers:

• A return of capital to LPs (limited partners)
• A new wave of dedicated AI funds
• A re-arbitrage: fewer pre-commit AI lab checks, more on the application layer (the pattern we describe in our Meta-Google brain drain analysis)

3. The signal to French and European startups

If Anthropic prices at $1T+ and Mistral stays private at ~$10-15B, the gap widens vertiginously. The European AI sovereignty debate (already fed by the £500M UK Sovereign AI Fund) will become a major political issue in France and Germany.

The remaining gray zones

1. Anthropic's board hasn't decided yet (the call is expected in May). Several scenarios remain open: round closes at $850B only, IPO pushed to 2027, or pivot to a sovereign fund (Mubadala is already being sounded out)
2. Existing investors want to sell. Part of the round could be a secondary (purchase of existing shares), notably from employees. The primary/secondary split directly impacts cash available for compute
3. The SEC published in January tightened AI disclosure rules. Anthropic will have to publish detailed numbers on revenue composition, compute costs, and model risks. Several experts wonder if Anthropic is operationally ready for these obligations

Conclusion: the entry ticket to AI mainstream

Anthropic's IPO, if confirmed for October, marks the moment AI moves from VC bet status to mainstream public asset class status. It will be the first time Mr. & Mrs. Smith can buy AGI in their 401(k). And the first time public markets assign a real price to a pure-play AI lab.

For founders wondering how to position their AI startup in this environment, two complementary reads: our guide how to monetize an AI app for the business model side, and our analysis vibe coding agentic engineering Karpathy security Georgia Tech for the technical context. The market will polarize between giant public players (OpenAI, Anthropic, Google, Microsoft AI) and profitable vertical niches (the segment where Idlen's chat SDK and other developer-first tools belong).

To track Anthropic's trajectory and the evolution of the public AI market, see our coverage of Claude Opus 4.7 hitting 87% on SWE-Bench and our analysis Anthropic overtakes OpenAI at $30B ARR.