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Company pair · AI
VS

OpenAI vs Anthropic: Valuation, Funding, Trajectory

AI OpenAI private Anthropic filed US-headquartered No Canborsa market

OpenAI and Anthropic are the two most valuable private names in AI.

On this pageSide by sideValuation marksWhat each disclosesVerdictFAQ
OpenAIPRIVATE · US
AnthropicFILED · US
VS
Last valuation$852B$965B
Basis Post-money Post-money
As ofMar 2026May 2026
Founded20152021
Employees≈1,700≈800
On CanborsaNo marketNo market
At a glance
$852B
OpenAIPost-money, Funding Round · Mar 2026
$965B
AnthropicPost-money, Series H · May 2026
1.13×
GapBoth post-money, 2 months apart
0 of 2
On CanborsaNeither company has a market
VS
Head-to-head · field by field

OpenAI vs Anthropic — side by side

Field
OpenAIPRIVATE · FOUNDED 2015
AnthropicFILED · FOUNDED 2021
VS
Last valuation
$852B Post-money
$965B Post-money
Valuation date
31 Mar 2026
28 May 2026
Valuation basis
Post-money
Post-money
Latest round
Funding Round
Series H
Round size
$122B
$65B
Round lead
Amazon, Nvidia
Altimeter Capital, Dragoneer
Named investors
Microsoft Thrive Capital Khosla Ventures SoftBank
Google Salesforce Zoom Spark Capital
Founded
2015
2021
Employees (est.)
≈1,700
≈800
Sector & HQ
Artificial Intelligence · US
Artificial Intelligence · US
Status & market
Private — no Canborsa market
Filed — no Canborsa market
Valuation · both companies on one scale

Valuation marks

Each bar is the last disclosed mark — $852B for OpenAI (post-money, Mar 2026) and $965B for Anthropic (post-money, May 2026).

OpenAI
$852BPost-money · Mar 2026
Anthropic
$965BPost-money · May 2026
OPENAI · $852B · MAR 2026ANTHROPIC · $965B · MAY 2026
OpenAI vs Anthropic · what each company discloses

What each company discloses, and what it leaves out

OpenAIPRIVATEAI · US · 2015
+Last disclosed mark $852B — post-money, Mar 2026.
+Founded 2015 .
+≈1,700 employees.
+Latest round: Funding Round, $122B raised, led by Amazon.
AnthropicFILEDAI · US · 2021
+Last disclosed mark $965B — post-money, May 2026.
+Founded 2021 .
+≈800 employees.
+Latest round: Series H, $65B raised, led by Altimeter Capital.
Verdict

Verdict

The $852B tells you…
What an investor paid for newly issued shares — a primary round, priced post-money.
How much capital arrived with it:$122B, led by Amazon in Mar 2026.
A dated print: it moves only when a newer round is announced.
The $965B tells you…
What an investor paid for newly issued shares — a primary round, priced post-money.
How much capital arrived with it:$65B, led by Altimeter Capital in May 2026.
A dated print: it moves only when a newer round is announced.

Both marks are post-money, so 1.13× compares like with like. Both are private: there is no public quote and no Canborsa market on either name.

Frequently asked questions

What industries are OpenAI and Anthropic in?›

OpenAI's sector is Artificial Intelligence; Anthropic's sector is Artificial Intelligence.

Which is worth more, OpenAI or Anthropic?›

OpenAI is valued at $852B, and Anthropic at $965B.

What's the location of OpenAI versus Anthropic?›

OpenAI's headquarters is in San Francisco, California; Anthropic's is in San Francisco, California.

What's the team size at OpenAI versus Anthropic?›

OpenAI employs around 1,700 people; Anthropic employs around 800.

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