Pick The Cloud Your Target Employer Runs On — Then Decide Depth Vs Permanence
If you only want one answer: choose AWS AI Practitioner (AIF-C01) if your target employer builds on AWS, and choose the Microsoft Certified: Azure AI Fundamentals credential (now earned via exam AI-901) if your target employer runs on Microsoft 365 and Azure. The two certifications overlap on roughly 60 percent of concepts — responsible AI, generative AI basics, prompt engineering, ML fundamentals — but they diverge on ecosystem, depth, expiration, and what they lead to next. Taking both is rarely the best use of your money; picking one and following it with a role-based associate certification is.
One 2026 fact most comparison pages still miss: the Azure AI-900 exam retired on June 30, 2026 and is replaced by Exam AI-901. The credential you earn — Microsoft Certified: Azure AI Fundamentals — is the same, and if you already passed AI-900 it stays on your transcript permanently. But anyone registering today sits AI-901, which is a different exam: two domains instead of five, a heavy Microsoft Foundry implementation section, and basic Python reading knowledge expected. Any guide still treating AI-900 as the current exam is stale as of July 2026.
Side-By-Side: AIF-C01 vs Azure AI Fundamentals (AI-901)
| Factor | AWS AI Practitioner (AIF-C01) | Azure AI Fundamentals (AI-901, replacing AI-900) |
|---|---|---|
| Exam code | AIF-C01 | AI-901 (AI-900 retired June 30, 2026) |
| Cost | $100 USD | $99 USD |
| Duration | 90 minutes | 45 minutes |
| Questions | 65 (50 scored + 15 unscored) | 40 to 60 |
| Passing score | 700 (scaled 100 to 1,000) | 700 (scaled to 1,000) |
| Domains | 5 | 2 |
| Coding required | No | Basic Python reading literacy |
| GenAI emphasis | 28% on foundation model applications (Bedrock, RAG, agents) | 55 to 60% on implementing AI solutions with Microsoft Foundry |
| Delivery | Pearson VUE test center or online proctored | Pearson VUE online proctored |
| Validity | 3 years | Permanent (fundamentals do not expire) |
| Recertification | Retake AIF-C01 or pass AWS Machine Learning Engineer Associate (MLA-C01) | None required |
| Next step | MLA-C01 or Generative AI Developer Professional (AIP-C01) | Azure AI Apps and Agents Developer Associate (AI-103, replacing AI-102) |
Sources: AWS certification page, AWS AIF-C01 exam guide, Microsoft Learn AI-901, Microsoft credential expiration policy.
Audience Fit: Who Each Certification Is Built For
AWS AI Practitioner is designed for non-engineers who need AI literacy inside the AWS ecosystem — product managers, program managers, business analysts, technical sales, solutions consultants, and career changers moving into AI-adjacent roles on AWS. AWS describes the target candidate as someone who uses but does not necessarily build AI/ML solutions, with up to six months of AI/ML exposure. It is concept-based: you will not write Python, tune hyperparameters, or configure SageMaker training scripts. You will choose the right AWS service for a business problem, distinguish RAG from fine-tuning, reason about inference parameters, and select responsible AI controls. It reads like a mini-Associate exam because scenario discrimination is the core skill, not memorized definitions.
Azure AI Fundamentals was historically the easier, more conceptual of the two — a vocabulary test with a few service-selection scenarios, designed for business analysts, students, and non-technical Microsoft 365 users. The 2026 shift to AI-901 changes that posture. AI-901 is built for technical beginners planning to build AI solutions, not just describe them. It has two domains, weights implementation with Microsoft Foundry at 55 to 60 percent, and expects basic Python syntax knowledge. The old AI-900 asked what is AI; AI-901 asks how do I build an AI app with Foundry. The audience is now narrower and more technical than the retired exam.
If you are a non-technical manager who wants a quick, permanent résumé line and no coding, the Azure AI Fundamentals credential is still achievable, but AI-901 is a harder lift than AI-900 was — budget more study time and expect to read Python. If you are a career changer who wants the deeper generative AI architecture literacy that recruiters in AWS-heavy markets respect, AIF-C01 is the stronger signal.
Cost And Format: Nearly Identical Price, Very Different Exam Day
Price is a wash: $100 for AIF-C01 versus $99 for AI-901 in the United States, before any country-specific adjustments. Both are proctored through Pearson VUE; AWS also offers online proctoring, and Microsoft offers online proctoring directly. The exam-day experience is not the same.
AIF-C01 gives you 90 minutes for 65 questions — roughly 1.4 minutes per question, but many are multi-part scenario items (multiple response, ordering, matching) that take longer to parse. The 15 unscored pretest questions are mixed in unidentified, so you must answer every item as if it counts. AI-901 gives you 45 minutes for 40 to 60 questions — a tighter clock, but the questions are shorter and more single-concept. The practical takeaway: AIF-C01 rewards reading stamina and scenario reasoning; AI-901 rewards quick, confident concept recall plus the ability to read a short Python snippet or Foundry configuration.
Two ways to cut the cost. AWS occasionally issues 50 percent off exam vouchers to candidates who pass an official practice exam through AWS Skill Builder, and a 50 percent recertification discount voucher appears in your AWS Certification Account benefits. Microsoft runs free Virtual Training Days that often bundle a free fundamentals exam voucher, and the Exam Replay offer pairs a retake with the original attempt for a small premium.
Difficulty: AWS Goes Deeper, Azure Got Harder In 2026
Neither exam is hard in absolute terms — both are foundational. But they are not equally easy, and the 2026 AI-901 replacement closed some of the gap.
AIF-C01 is the broader, deeper exam. Its five domains cover AI and ML fundamentals (20 percent), generative AI fundamentals (24 percent), foundation model applications including Bedrock, RAG, agents, and guardrails (28 percent), responsible AI (14 percent), and security, compliance, and governance (14 percent). The 28 percent on foundation model applications is where most candidates lose points, because it requires distinguishing RAG from fine-tuning from prompt engineering from distillation in a business scenario. Community-estimated first-attempt pass rates for AIF-C01 fall around 72 to 78 percent; AWS does not publish official pass rates.
The retired AI-900 was widely considered the easiest Microsoft fundamentals exam — five evenly weighted 15 to 20 percent domains, no coding, mostly which Azure service does X. AI-901 restructures that into two domains and shifts the weight to implementation. The 55 to 60 percent on Microsoft Foundry means you now need to understand how to build generative AI apps and agents, not just name the services. Microsoft does not publish pass rates, but the Python requirement alone makes AI-901 a higher bar than AI-900 was. For a true beginner with no coding exposure, AIF-C01 may now be the easier path because it tests zero code.
Content Overlap: Same Ideas, Different Service Names
Roughly 60 percent of the conceptual content overlaps: both cover responsible AI principles, generative AI basics, prompt engineering, ML fundamentals, and AI workload scenarios. The overlap is in the ideas, not the vocabulary. Every concept maps to a different service name.
| Concept | AWS term | Azure term |
|---|---|---|
| Managed foundation model access | Amazon Bedrock | Azure OpenAI Service |
| Retrieval-augmented generation | Bedrock Knowledge Bases | Azure AI Search plus Azure OpenAI |
| Content safety and guardrails | Bedrock Guardrails | Azure AI Content Safety |
| AI agents | Bedrock Agents and AgentCore | Microsoft Foundry agents and Copilot Studio |
| Machine learning platform | Amazon SageMaker | Azure Machine Learning |
| Computer vision | Amazon Rekognition | Azure AI Vision |
| Language and NLP | Amazon Comprehend | Azure AI Language |
| Speech | Amazon Transcribe and Polly | Azure AI Speech |
If you master the concepts on one cloud, transferring to the other is a vocabulary swap, not a re-education. This is why taking both foundational exams is low-value: you pay about $199 to relearn the same ideas with different service names. The higher-value move is to take one foundation cert, then invest the second $100 in the role-based associate exam that actually moves hiring outcomes.
Career Path: What Each Certification Leads To
The foundation cert is the on-ramp, not the destination. What matters is what comes next.
AWS path. AIF-C01 feeds into AWS Certified Machine Learning Engineer Associate (MLA-C01), the hands-on build-deploy-operate exam for ML workloads, and the newer Generative AI Developer Professional (AIP-C01), the advanced GenAI credential. Passing MLA-C01 also automatically recertifies your AIF-C01. The AWS path is strongest in startups, fintech, and cloud-native companies where AWS is the default platform and generative AI workloads run on Bedrock.
Azure path. Azure AI Fundamentals feeds into the Azure AI Engineer Associate track. The AI-102 exam retired June 30, 2026 and is replaced by AI-103: Developing AI Apps and Agents on Azure — a different, agent-focused exam that requires separate preparation. The Azure path is strongest in enterprises, government, healthcare, and Microsoft 365 shops where Copilot and Azure OpenAI are embedded in the productivity stack.
Neither foundation cert qualifies you for an engineering job on its own. They are literacy signals that get you past the keyword filter and into the interview conversation. The salary lift comes from the role-based associate cert plus a portfolio project — not from stacking two fundamentals. Treat the foundation cert as the first step, not the last one.
Recertification: The Biggest Structural Difference
This is where the two credentials diverge most, and it is the detail most comparison pages get wrong.
AWS AI Practitioner expires in 3 years. To recertify, you must either retake the current AIF-C01 exam or pass the current AWS Certified Machine Learning Engineer Associate (MLA-C01) exam. AWS provides a 50 percent discount voucher in your Certification Account benefits for recertification. The three-year extension runs from the date you complete the recertification action. There is no continuing-education option — it is exam-based only (AWS recertification page).
Azure AI Fundamentals never expires. Microsoft fundamentals certifications do not expire and require no renewal, unlike role-based associate and expert certifications which expire after one year and renew through a free online assessment (Microsoft credential expiration policy). Once you earn Azure AI Fundamentals — whether via the retired AI-900 or the current AI-901 — it is permanent on your transcript.
The trade-off: AWS asks you to re-earn or upgrade every three years, which keeps your knowledge current but costs money and time. Azure gives you permanence for $99, but the credential can go stale as the technology moves — which is exactly why Microsoft retired AI-900 and launched AI-901. Permanence is a feature of the credential, not of the exam; the exam you sit today will eventually be replaced by a newer one. If long-term maintenance cost matters to you, Azure wins. If staying current on a forced cycle matters, AWS wins.
The Decision Rule: Choose Based On Employer Cloud, Then Depth
Use this rule, in order:
- Match your target employer's cloud. If you are applying to AWS-shop companies (startups, fintech, cloud-native, US tech), take AIF-C01. If you are applying to Microsoft 365 or Azure enterprises (banking, healthcare, government, consulting, education), take AI-901. This is the single biggest factor — recruiter keyword matching is cloud-specific, and a cert in the wrong cloud is a missed keyword.
- If you are unsure, prefer AWS for depth. AIF-C01 goes deeper into generative AI architecture and is the stronger technical literacy signal. It also expires, which forces you to stay current. The trade-off is maintenance cost every three years.
- Prefer Azure if you want permanence and minimal coding. Azure AI Fundamentals is permanent and, with AI-901, requires only basic Python reading — but the permanence is valuable if you want a one-and-done credential that never lapses.
- Skip the second foundation cert. Take one, then spend the next $100 on the role-based associate exam (AWS MLA-C01 or Azure AI-103) that actually changes hiring outcomes. Two fundamentals on the same résumé signals breadth without depth.
- If you already work in the cloud daily, skip fundamentals entirely. Go straight to the associate cert. Fundamentals are for people who need the vocabulary, not for practitioners who already have it.
The expensive mistake is not picking the wrong foundation cert — it is stopping at foundations instead of using it as the on-ramp to a role-based certification that pays.
Practice Both For Free
Whatever you choose, the highest-yield study method is the same: short concept review, then heavy timed practice until your reasoning is fast, not just your recall. These exams reward scenario discrimination — which service fits this situation — far more than memorized definitions.
Start free, no signup:
- AWS AI Practitioner: free AIF-C01 practice questions and the study guide
- Azure AI Fundamentals: free AI-900 practice questions and the study guide
Drill until you can explain why each wrong answer is wrong in one sentence. Then book the exam.
Official Sources
- AWS Certified AI Practitioner (overview, cost, format): https://aws.amazon.com/certification/certified-ai-practitioner/
- AWS AIF-C01 exam guide (domains, scoring, question types): https://docs.aws.amazon.com/aws-certification/latest/ai-practitioner-01/ai-practitioner-01.html
- AWS recertification policies (3-year validity, recertification options): https://aws.amazon.com/certification/recertification/
- Microsoft Learn — Exam AI-900 (retired June 30, 2026): https://learn.microsoft.com/en-us/credentials/certifications/exams/ai-900/
- Microsoft Learn — Exam AI-901 (current exam, two domains, Foundry, Python): https://learn.microsoft.com/en-us/credentials/certifications/exams/ai-901/
- Microsoft Learn — Azure AI Fundamentals credential: https://learn.microsoft.com/en-us/credentials/certifications/azure-ai-fundamentals/
- Microsoft Learn — Credential expiration policy (fundamentals do not expire): https://learn.microsoft.com/en-us/credentials/support/credential-expiration-policy
- Microsoft Learn — Azure AI Engineer Associate (AI-102 retirement, AI-103 successor): https://learn.microsoft.com/en-gb/credentials/certifications/azure-ai-engineer/

