- Cloud Deal: Perplexity signed a three-year, $750 million agreement with Microsoft to use Azure cloud services and deploy AI models through Azure AI Foundry.
- Multi-Cloud Strategy: Amazon Web Services remains Perplexity’s preferred cloud provider despite the Microsoft partnership, with the company maintaining hundreds of millions in AWS commitments.
- Legal Context: The announcement comes months after Amazon sued Perplexity over its AI shopping agent product, complicating vendor relationship dynamics.
Two years after CEO Arvind Srinivas declared the AI search company was going “all-in” on Amazon Web Services, Perplexity announced a three-year, $750 million deal with Microsoft to use Azure cloud services.
The agreement enables Perplexity to deploy AI models through Azure AI Foundry, including those from OpenAI, Anthropic and xAI. Yet even as the startup commits to Microsoft Azure, AWS remains its preferred cloud provider.
Microsoft Foundry Gains High-Profile AI Customer
The timing of this partnership highlights Microsoft’s momentum in enterprise AI infrastructure. For Microsoft, the agreement adds a high-profile AI customer as it positions Foundry as a central hub for deploying models from multiple providers, not just OpenAI.
Microsoft Azure Foundry is a unified platform-as-a-service offering that enables developers to build enterprise AI applications without managing underlying infrastructure. CEO Satya Nadella described the company’s multi-provider approach on its recent earnings call: “Our customers expect to use multiple models as part of any workload.”
Foundry momentum has accelerated rapidly, with over 1,500 customers using both Anthropic and OpenAI models through the platform. Customers spending more than $1 million per quarter grew nearly 80% year-over-year.
Over 250 customers are on track to process more than 1 trillion tokens on Foundry in 2026. This trillion-token processing milestone positions Microsoft to capture enterprise AI workloads at production scale, creating a defensive moat against AWS and Google Cloud.
AWS Remains Primary Cloud Despite New Deal
Despite the Microsoft commitment, Perplexity’s infrastructure remains anchored to its original cloud provider. Perplexity built most of its platform on Amazon Web Services, employing Amazon Bedrock to reach Anthropic models.
AWS has pointed to Perplexity as one of its primary AI customers, with Srinivas saying Perplexity has allocated “hundreds of millions” of dollars for AWS infrastructure.
“AWS remains Perplexity’s preferred cloud infrastructure provider, and we’re excited to announce expansions of that partnership in the coming weeks.”
Perplexity spokesperson (via Bloomberg)
Amazon Web Services remains Perplexity’s main cloud provider, and the company has not shifted spending away from AWS. This multi-cloud strategy creates leverage in price negotiations while hedging against vendor lock-in.
Amazon Lawsuit Over AI Shopping Agent
The cloud infrastructure announcement comes at a particularly contentious moment in the Perplexity-Amazon relationship.
Amazon issued a Cease-and-Desist to Perplexity in November 2025 to stop the AI startup from letting consumers use its AI borwoser Comet to shop on Amazon’s marketplace, alleging computer fraud by failing to disclose when Comet is shopping on a real person’s behalf.
Perplexity characterized Amazon’s action as “a threat to user choice.” Amazon’s cease-and-desist letter marked the first major legal test over whether an autonomous AI agent has the right to act as a shopper on an eCommerce platform.
Announcing the Azure deal months into the Amazon lawsuit complicates vendor relationship dynamics. This commitment provides Perplexity with infrastructure independence from Amazon at a moment when the e-commerce giant is actively litigating against the AI startup’s core product features.
Multi-Cloud Strategy Reflects Industry Shift
Perplexity’s infrastructure diversification mirrors a broader pattern among AI-native companies navigating compute scarcity. Fast-growing AI companies are increasingly adopting multi-cloud strategies rather than relying on a single provider to improve reliability and gain access to a wider range of AI models.
It’s common for AI startups such as Anthropic and OpenAI to use multiple providers as they seek a broad compute base. Startups and large tech companies report there is far less computing power available than they need.
Computing power shortages drive AI startups to secure multi-billion-dollar commitments to guarantee access, transforming cloud partnerships from cost optimization decisions into strategic necessity. The pattern mirrors Amazon’s billion-dollar commitments to Anthropic for guaranteed cloud capacity.
Media Companies Challenge AI Practices
Legal conflicts extend beyond cloud partnerships into content sourcing. Perplexity faces legal challenges from media companies beyond Amazon.
The BBC threatened to take legal action in June 2024 for scraping its content to train AI models, while the New York Times sent a cease and desist notice demanding the startup stop using its content for generative AI. Cloudflare has criticized Perplexity for stealth crawling to circumvent websites’ preferences.
Legal challenges from Amazon, the BBC, The New York Times, and Cloudflare establish a pattern of conflict between Perplexity’s data collection practices and platform owners’ access policies. Despite these disputes, the valuation following its September 2025 funding round suggests the market believes AI search’s value proposition outweighs the legal risks.
Microsoft Gains Ground in Cloud AI Competition
Against this backdrop of vendor tensions, the Azure partnership represents a strategic win for Microsoft’s competitive positioning. Microsoft Azure’s Intelligent Cloud segment revenue rose 29% year-over-year in Q2 FY 2026 to reach $32.9 billion, with Azure and other cloud services growing 39%.
Azure has become the primary delivery mechanism for large-scale AI workloads, from training foundation models to deploying inference at enterprise scale. The Azure platform’s expansion includes adding Elon Musk’s Grok AI to its model catalog last year, reflecting Microsoft’s multi-provider AI strategy.
“We are pushing the frontier across our entire AI stack to drive new value for our customers and partners.”
Satya Nadella, Chairman and CEO of Microsoft
This partnership boosts Microsoft as it competes with Amazon, Google, Oracle and others to grab business from AI firms. Azure’s 39% growth rate, driven substantially by AI workloads, establishes Microsoft as the primary challenger to AWS at a strategic moment when enterprises are evaluating multi-cloud strategies, potentially influencing hundreds of millions in future cloud decisions.
