Key Takeaways
- Denise Dresser, OpenAI’s revenue chief, distributed an internal staff communication highlighting Amazon’s partnership as critical for enterprise expansion
- The memo stated that Microsoft’s arrangement “limited our ability to meet enterprises where they are”
- In late February 2026, Amazon revealed intentions to pour up to $50 billion into OpenAI
- Enterprise operations currently represent 40% of OpenAI’s total revenue, projected to equal consumer revenue by year’s conclusion
- Dresser took aim at Anthropic’s approach, characterizing it as founded on “fear, restriction, and the idea that a small group of elites should control AI”
In an internal communication distributed to employees on Sunday, OpenAI’s revenue chief Denise Dresser celebrated the artificial intelligence company’s emerging alliance with Amazon while acknowledging that its established arrangement with Microsoft has constrained business opportunities.
The communication, obtained by CNBC, arrived approximately six weeks following Amazon’s announcement of its intention to commit as much as $50 billion to OpenAI through a strategic collaboration.
“Our Microsoft partnership has been foundational to our success. But it has also limited our ability to meet enterprises where they are — for many that’s Bedrock,” Dresser wrote.
Amazon Web Services’ Bedrock service enables companies to tap into leading AI models, including those from OpenAI, via a unified cloud infrastructure. Following the Amazon announcement, OpenAI reported that client interest has been “frankly staggering.”
Microsoft has poured over $13 billion into OpenAI beginning in 2019. Even while characterizing the partnership as fundamental and strategic, the two organizations have increasingly entered competitive territory. In its 2024 annual filing, Microsoft identified OpenAI among its rivals.
OpenAI has begun diversifying its cloud infrastructure partnerships beyond Microsoft, engaging with providers such as CoreWeave, Google, and Oracle to secure additional computational resources.
Corporate Market Competition Intensifies
OpenAI is making an aggressive push into corporate markets, where Anthropic’s Claude platform has established significant traction. Google Gemini is similarly vying for dominance in this segment.
In conversations with CNBC earlier this month, Dresser revealed that enterprise clients now contribute 40% of OpenAI’s overall revenue. She projected that enterprise revenue will match consumer revenue before year-end.
During last week’s HumanX AI industry conference in San Francisco, Glean CEO Arvind Jain described enthusiasm for Anthropic’s Claude as “Claude mania,” stating “it has become a religion.”
OpenAI Targets Anthropic Strategy
In the memo, Dresser directly challenged Anthropic’s business philosophy, characterizing its strategy as rooted in “fear, restriction, and the idea that a small group of elites should control AI.”
She further suggested Anthropic committed a “strategic misstep to not acquire enough compute.” A separate OpenAI communication to investors on Thursday claimed Anthropic is “operating on a meaningfully smaller curve.”
Earlier this month, Anthropic unveiled a computing infrastructure agreement with Google and Broadcom involving “multiple gigawatts” of capacity.
OpenAI achieved a valuation exceeding $850 billion during a late March capital raise. Anthropic secured a $380 billion valuation one month prior. Both artificial intelligence companies are reportedly considering public offerings this year.
Dresser joined OpenAI as chief revenue officer in December following her tenure as CEO of Slack and leadership positions at Salesforce.
Concluding her message to employees, she stated: “The market is ours to win, let’s execute accordingly.”
