I will give you the honest answer up front: in 2026 the exam most people are searching for, the AWS Certified Machine Learning Specialty, is already gone. Its last testing day was March 31, 2026 (AWS 2025), so if you are reading this now you cannot register for it. The credential you can still earn, and the one I would actually point a working ML engineer toward, is the AWS Certified Machine Learning Engineer Associate (MLA-C01). It costs $150 instead of the old Specialty's $300, and it is built around production ML on AWS rather than pure algorithm theory (AWS 2026). The rest of this review is about that live exam: what it tests, what it really costs once you add prep, what machine learning engineers actually earn, and the honest catch that most cert guides skip over.
The exam you want in 2026 is not the one everyone Googles
For years the answer to 'which AWS machine learning cert should I take' was the ML Specialty (MLS-C01). AWS retired it on March 31, 2026, and pointed candidates at a new role-based track instead (AWS 2025). If you already hold the Specialty, it stays valid for three years from the date you earned it, so there is no need to panic. But nobody new can take it, which makes most of the older 'is the ML Specialty worth it' articles out of date the moment you read them.
The replacement is the AWS Certified Machine Learning Engineer Associate (MLA-C01), which went generally available in late 2024 and is now the current AWS ML exam. It is deliberately more practical. Where the Specialty leaned into modeling theory and algorithm selection, the Associate is about implementing, deploying, and maintaining ML workloads in production using SageMaker and the wider AWS stack (AWS 2026). It is also positioned one tier lower, at Associate rather than Specialty level, and priced accordingly at $150 versus $300. That does not make it easy, but it does make it cheaper to attempt and more aligned with the day job of an ML or MLOps engineer.
| Feature | ML Specialty (MLS-C01, retired) | ML Engineer Associate (MLA-C01, current) |
|---|---|---|
| Status in 2026 | Retired March 31, 2026 | Live, current exam |
| Exam fee | $300 | $150 |
| Length | 180 minutes | 130 minutes |
| Passing score | 750 / 1000 | 720 / 1000 |
| Focus | ML theory and algorithm choice | Production ML, deployment, MLOps |
What the ML Engineer Associate actually costs
The headline cost is $150 for the exam (AWS 2026). There is no discounted retake: if you fail, you pay the full $150 again, and AWS makes you wait 14 days between attempts. The good news is that the official prep is free. AWS Skill Builder hosts an official MLA-C01 exam prep course at no cost, and the SageMaker documentation is free too. Most people add a paid practice test set, which is where the exam is genuinely won, since timed mock questions expose the gaps that reading never will. A quality practice bundle from a provider like Whizlabs or a well-reviewed Udemy course runs roughly $15 to $30 when on sale. You book and pay for the exam voucher itself through Pearson VUE, and you can also buy an official voucher and practice bundle through mindhub.com if you want them together.
| Exam fee Full $150 again on a retake, 14-day wait | $150 |
| AWS Skill Builder official prep Free official course | $0 |
| Practice exams (Udemy / Whizlabs) On sale, optional but recommended | $15 to $30 |
| Voucher + practice bundle (mindhub) Optional convenience bundle | Varies |
| Total | $150 to $180 |
What the exam tests
The MLA-C01 has 65 questions (50 scored plus 15 unscored) in 130 minutes, and you need 720 out of 1000 to pass, on a compensatory model where only your overall score matters, not each section (AWS 2026). The scored content splits across four domains: Data Preparation for ML at 28 percent, ML Model Development at 26 percent, Deployment and Orchestration of ML Workflows at 22 percent, and ML Solution Monitoring, Maintenance, and Security at 24 percent (AWS 2026). Read that weighting carefully. More than 40 percent of the exam is deployment, orchestration, monitoring, and security, which is MLOps work. Only about a quarter is model development itself. This is not a data science theory exam. It rewards people who have actually shipped a model to a SageMaker endpoint, set up monitoring, and dealt with the boring production reality of keeping it alive.
What machine learning engineers actually earn
Pay for this role is strong, but be careful about which number you believe. Glassdoor puts the average US machine learning engineer salary near $162,750, with a typical range from about $130,827 at the 25th percentile to $205,081 at the 75th (Glassdoor 2026). Levels.fyi, which skews toward big tech and counts stock and bonuses, reports a median total compensation around $272,244 and a median base near $190,000 (Levels.fyi 2026). At the top end, Levels.fyi shows median packages around $290,000 at Google and $430,000 at Meta (Levels.fyi 2026). Those upper numbers are total compensation at elite firms, not what a typical certified engineer at a mid-size company takes home, so use Glassdoor for a grounded expectation and Levels.fyi to see the ceiling.
“The certificate does not create that salary. The role and your demonstrated ability to ship ML in production do. The badge is a signal on top of skills you already need to have.”
TechCerted analysis of Glassdoor and Levels.fyi 2026 data
Who should get it, and who should skip it
This certificate makes sense if you already work with ML on AWS: an ML engineer, a data scientist moving into production work, an MLOps engineer, or a software engineer building ML features on the platform. For those people, the $150 exam is a low-cost way to validate skills they already use, and it maps cleanly onto the roles in our guides for the <a href="/careers/ai-ml-engineer">AI and ML engineer</a> and <a href="/careers/mlops-engineer">MLOps engineer</a> paths. It is a much weaker choice if you are trying to break into machine learning from nothing. Associate does not mean beginner here. AWS assumes you already understand ML workflows and core AWS services, so a total newcomer will spend most of their study time fighting prerequisites rather than learning the exam. If that is you, a broader foundation such as the <a href="/certifications/aws-ml-specialty">AWS ML certification track</a> paired with real projects, or the more approachable <a href="/learn/is-aws-ai-practitioner-worth-it-2026">AWS AI Practitioner</a> credential, is a saner first step.
- Only $150, half the price of the retired Specialty, with free official prep on AWS Skill Builder
- Tests production and MLOps skills that real jobs actually need, not just theory
- Carries AWS brand recognition, the successor to a well-respected Specialty exam
- Maps directly to in-demand ML engineer and MLOps roles with strong pay
- Not an entry point: AWS assumes existing ML and AWS experience
- No independent data proves the badge itself raises your salary
- Valid three years, then you re-certify, so it is an ongoing commitment
- Value is tied to the AWS ecosystem; less useful in a GCP or Azure shop
The honest catch most guides miss
Here is the trap. The old seed data for this cert, and plenty of affiliate articles, quote a tidy 'plus 15 percent salary boost' figure. I could not find any independent, credible data that isolates a salary increase caused specifically by holding this certificate, so I would treat any exact percentage with skepticism. What the data does show is that machine learning engineers as a role are paid well (Glassdoor 2026), and that is a different claim. A certificate is a hiring signal and a way to prove you have covered the ground; it is not a raise generator on its own. The people who see a real return are the ones who already have the underlying skills and use the cert to make those skills legible to a recruiter or an internal promotion committee. If you pass the exam but cannot walk an interviewer through a model you shipped and monitored, the badge will not save you. Treat it as the last 10 percent that confirms real experience, not the first 90 percent that replaces it.
How to prepare
Plan on roughly 8 to 10 weeks if you already work with SageMaker, and longer if you do not. Start with the free official AWS Skill Builder exam prep course, then build. The single best preparation is to take a real dataset, train a model in SageMaker, deploy it to an endpoint, and wire up monitoring, because that mirrors what the exam actually tests. Layer in timed practice exams to find your weak domains, and only book the real thing once you are consistently clearing the high 70s on mocks. If you want structured video, <a href="https://www.udemy.com/courses/search/?q=aws%20machine%20learning%20engineer%20associate">a focused MLA-C01 prep course</a> pairs well with the free official material. For the wider path, our <a href="/learn/is-aws-solutions-architect-worth-it-2026">AWS Solutions Architect review</a> and <a href="/learn/is-google-ml-engineer-worth-it-2026">Google ML Engineer comparison</a> help you decide whether AWS is even the right ecosystem to certify in.
- Weeks 1 to 3AWS Skill Builder official prep plus data preparation and feature engineering in SageMaker10 hrs/wk
- Weeks 4 to 6Model development, training, and tuning. Build and deploy a real model to an endpoint10 hrs/wk
- Weeks 7 to 8Deployment, orchestration, monitoring, and security. This is 40 percent of the exam10 hrs/wk
- Weeks 9 to 10Timed practice exams until you clear the high 70s, review weak domains, then book it10 hrs/wk
The AWS ML Specialty is retired, so the real question in 2026 is whether the Machine Learning Engineer Associate (MLA-C01) is worth it, and the answer depends on who you are. For an engineer already building ML on AWS, yes: at $150 with free official prep, it is a cheap, credible signal that maps to well-paid roles, with US ML engineers averaging around $162,750 (Glassdoor 2026). For someone trying to break into ML from scratch, no: this is an Associate exam that still assumes real experience, and you will get more from building projects and a broader foundation first. Ignore any neat salary-boost percentage; the pay comes from the role and your skills, and the cert only confirms them.
For the full domain breakdown, study plan, and prep resources, see our <a href="/certifications/aws-ml-specialty">AWS Machine Learning certification guide</a>. If you are mapping the wider path, our roadmaps for the <a href="/careers/ai-ml-engineer">AI and ML engineer</a>, <a href="/careers/mlops-engineer">MLOps engineer</a>, and <a href="/careers/data-scientist">data scientist</a> roles show where this credential fits, and our <a href="/learn/is-aws-data-engineer-associate-worth-it-2026">AWS Data Engineer Associate review</a> covers the sibling cert many ML teams pair it with.
Is the AWS Machine Learning Specialty still available in 2026?+
No. The AWS Certified Machine Learning Specialty (MLS-C01) retired on March 31, 2026, and can no longer be taken. If you already earned it, it stays valid for three years from your achievement date. New candidates should take the ML Engineer Associate (MLA-C01) instead.
How much does the AWS ML Engineer Associate exam cost?+
The MLA-C01 exam is $150. There is no discounted retake, so a second attempt costs the full $150 again with a 14-day wait between tries. Official prep on AWS Skill Builder is free, so most people spend $150 to $180 all-in including optional practice tests.
How many questions is it and what score do I need to pass?+
The exam has 65 questions, 50 scored and 15 unscored, in 130 minutes. You need a scaled score of 720 out of 1000. It uses a compensatory model, so only your overall score matters, not each individual domain.
Is this certification good for beginners?+
Not really. Despite being an Associate-level exam, AWS assumes you already have hands-on experience with ML workflows and AWS services like SageMaker. Total beginners should build real projects and consider a broader foundation or the AWS AI Practitioner first.
Will this certification raise my salary?+
There is no independent data isolating a salary bump from this specific badge, so be skeptical of any exact percentage. Machine learning engineers are paid well as a role, averaging around $162,750 on Glassdoor and a median total compensation near $272,244 on Levels.fyi, but that pay reflects skills and experience the certificate signals rather than creates.
How long does it take to prepare?+
Around 8 to 10 weeks if you already work with SageMaker and AWS, and longer if you are newer. The most effective prep is building and deploying a real model end to end, since more than 40 percent of the exam covers deployment, orchestration, monitoring, and security.