AIF-C01 vs CLF-C02: Which AWS Foundational Cert Should You Take First?
- #clf-c02
- #aif-c01
- #exam-format
AWS now has two foundational certifications: the long-established Cloud Practitioner (CLF-C02) and the newer Certified AI Practitioner (AIF-C01). If you are starting out and only want to sit one, or you are deciding which order to take them in, this post breaks down how they differ and who each one is for.
Both are entry-level and neither requires hands-on lab work. They follow AWS’s standard certification experience, though AIF-C01 introduces a couple of extra question formats. The main difference is entirely in the subject matter.
CLF-C02 vs AIF-C01 at a glance
| CLF-C02 | AIF-C01 | |
|---|---|---|
| Focus | The AWS Cloud, broadly | AI and ML on AWS |
| Level | Foundational | Foundational |
| Questions | 65 | 65 |
| Time | 90 minutes | 90 minutes |
| Passing score | 700 / 1000 | 700 / 1000 |
| Domains | 4 | 5 |
| Question formats | Multiple choice, multiple response | Multiple choice and response, plus ordering and matching |
| Prerequisites | None | None |
The headline difference: cloud breadth vs AI focus
CLF-C02 validates a broad, foundational understanding of the AWS Cloud as a whole: core compute, storage, networking and database services, security and the shared responsibility model, pricing, and support. It is the natural first step into the AWS certification track and assumes no prior cloud knowledge.
AIF-C01 is narrower and deeper on one theme: artificial intelligence and machine learning on AWS. It covers AI/ML fundamentals, generative AI concepts, foundation models and prompt engineering, responsible AI, and the security and governance of AI systems. AWS positions it as foundational with no formal prerequisites and no required cloud experience, though candidates who already understand basic AWS concepts (regions, IAM, S3, the shared responsibility model) tend to find some AIF-C01 topics easier to place in context.
What stays the same
The exam mechanics are nearly identical, which makes preparing for both at once straightforward:
- Format. CLF-C02 uses multiple choice and multiple response. AIF-C01 uses those too, plus ordering and matching formats introduced for the AI Practitioner exam.
- Scoring. Scaled 100 to 1000. CLF-C02 passes at 700; AIF-C01 passes at 700.
- Level. Both foundational, testing breadth of understanding rather than deep implementation.
- No hands-on requirement. Neither needs you to build anything in the console.
So once you are used to the question style on one, the other feels familiar, though AIF-C01 mixes in a few interaction types CLF-C02 does not.
How the domains compare
CLF-C02 spreads four domains across general cloud knowledge:
- Cloud Concepts, Security and Compliance, Cloud Technology and Services, and Billing, Pricing, and Support.
AIF-C01 splits five domains entirely within AI/ML:
- Fundamentals of AI and ML, Fundamentals of Generative AI, Applications of Foundation Models, Guidelines for Responsible AI, and Security, Compliance, and Governance.
You can drill either set directly: the CLF-C02 practice and the AIF-C01 practice are each organised around their real exam-guide domains.
Which should you take first?
AWS doesn’t prescribe an order; both are foundational and independent. That said, in my view CLF-C02 makes the better starting point for anyone new to AWS. It builds the cloud vocabulary (regions, IAM, S3, EC2, the shared responsibility model) that makes several AIF-C01 topics easier to contextualise, so going Cloud Practitioner then AI Practitioner tends to feel like each exam builds on the last.
Consider AIF-C01 first if your work is squarely in AI/ML and you already know cloud basics. In that case the AI Practitioner is more relevant to your day-to-day and a faster win.
If you want both, do them back to back. The shared format means the second exam needs far less ramp-up than the first.
Bottom line
CLF-C02 is the broad cloud foundation; AIF-C01 is the focused AI foundation. Similar exam experience, same scoring, same foundational level, different subject matter (AIF-C01 adds a couple of question formats). Start with CLF-C02 unless you live in AI/ML, then add AIF-C01. Either way, rehearse with domain practice and a couple of full-length mock exams before you book. Start with the CLF-C02 practice exam or jump straight into AIF-C01.