AZ-900 vs AI-901: which to take first?
AZ-900 and AI-901 are both Microsoft fundamentals exams, but they test different things. AZ-900 covers the cloud itself: what Azure is, how it is structured, what the core services do and how it is secured, governed and billed. AI-901 covers building small AI solutions on Azure with Microsoft Foundry. For most people new to Azure, AZ-900 comes first, because AI-901 assumes the vocabulary AZ-900 teaches.
The two exams side by side
| AZ-900 | AI-901 | |
|---|---|---|
| Certification | Microsoft Certified: Azure Fundamentals | Microsoft Certified: Azure AI Fundamentals |
| Level | Fundamentals | Fundamentals |
| Passing score | 700 / 1000 | 700 / 1000 |
| Skill areas | Three | Two |
| Style | Conceptual: describe, define, compare | Mixed: concepts plus hands-on implementation |
| Coding | None | Python syntax and SDK familiarity expected |
| Expires | No | No |
| Languages | 13 | 13 |
Both are fundamentals certifications, so neither has to be renewed.
What each exam covers
| AZ-900 skill area | Weight |
|---|---|
| Describe cloud concepts | 25–30% |
| Describe Azure architecture and services | 35–40% |
| Describe Azure management and governance | 30–35% |
| AI-901 skill area | Weight |
|---|---|
| Identify AI concepts and capabilities | 40–45% |
| Implement AI solutions by using Microsoft Foundry | 55–60% |
AZ-900 is broad. It touches compute, networking, storage, identity, cost, policy and monitoring, but only at the level of “what is this for”. AI-901 is narrower but deeper: more than half of it is about doing things in Foundry, such as deploying a model, writing a prompt, building a small chat client or an agent.
Where they overlap
Very little. The overlap is mostly background:
- Resource structure. AI-901 assumes you know what a subscription, a resource group and a region are. AZ-900 teaches exactly that.
- Identity and access. Both touch on Microsoft Entra ID and role-based access. AZ-900 covers it as a topic; AI-901 uses it when connecting an app to a model.
- Responsible use. AI-901 has a responsible AI component. AZ-900 has governance and compliance with Azure Policy and Microsoft Purview. Different subjects, similar mindset.
Studying for one gives you perhaps a week’s head start on the other, not more.
Who should take which
| If you | Take |
|---|---|
| Are new to cloud computing altogether | AZ-900 |
| Work in sales, finance, project management or procurement around Azure | AZ-900 |
| Plan to become an Azure administrator, engineer or architect | AZ-900 |
| Already know Azure basics and want to build AI apps | AI-901 |
| Are a developer who wants a first AI credential | AI-901 |
| Need both the cloud and the AI vocabulary | AZ-900 first, then AI-901 |
AZ-900 suits non-technical roles well because it asks for understanding, not implementation. AI-901 is harder to pass on reading alone: Microsoft’s audience profile expects Python syntax and familiarity with REST APIs, SDKs and command-line tools.
Which is harder?
For someone without a technical background, AI-901 is clearly harder. It expects you to recognise code and SDK calls, and more than half the score comes from hands-on objectives. AZ-900 requires no code at all, but it is broad: a lot of service names, each with a neighbour it is easily confused with. People from a pure development background sometimes find AZ-900’s governance and pricing topics the less familiar part.
See is AZ-900 hard? for a breakdown by background.
Which order makes sense
If you are new to Azure, start with AZ-900. Regions, resource groups, subscriptions, identity and pricing are everywhere in Azure, and AI-901 questions assume them without explaining them. Four weeks for AZ-900, then another few weeks for AI-901, is a comfortable pace.
If you already work in Azure, you can skip straight to AI-901. You may still want AZ-900 for a partner requirement or a job listing, but it will take you days of revision, not weeks.
If you only want one, pick by the job. For cloud operations, administration, architecture or any non-technical Azure role, AZ-900. For building AI features, AI-901.
After the fundamentals
Neither exam is a prerequisite for anything: Microsoft does not require a fundamentals certification before an associate exam. They are starting points. From AZ-900, people usually move on to an administrator or developer associate exam. From AI-901, the next step is usually AI-103 for building AI apps and agents, or AI-200 for the back-end services around them.
For the AI route in more detail, see the Azure AI certification path. For AZ-900 itself, start with the four-week study plan, and for AI-901 see the AI-901 guide.