N.sujatha
Posted
Very fast serve
Very fast serve

Great
109 reviews
OpenTrain AI is a global marketplace for AI Trainers and Data Labelers. Companies hire vetted experts for high quality training data, while freelancers access flexible remote projects with leading AI and technology companies.
OpenTrain AI (opentrain.ai) has 109 customer reviews on Consumer Courier, with an average rating of 4.0 out of 5.
Showing 68 reviews with 5 stars · Clear filters
N.sujatha
Posted
Very fast serve
customer A.
Posted
Application easy for newbie
مالك اشرف مصطفي ع.
Posted
جاااامد اويييب
Hneen A.
Posted
الموقع ممتاز جدا
Ramkrishna D.
Posted
This is genuine platform
Keith K.
Posted
The learning curve is steep and it is exciting to create tasks, design criteria and build evaluations. The platform is very well designed, and payment process is transparent, you see what is tracked and they pay on-time. The pace is fast and you need to have strong time commitment, discipline and focus to be able to perform.
Feroz
Posted
OpentrainAI has a wonderful team and it was great working with them. Unfortunately, I didn't manage to complete the assignment but I was provided great support at every step. The training they provide and their effort level is admirable. The payments were not disputed and were always on time. Thanks
customer
Posted
I’ve had a very positive experience working with OpenTrain AI. The projects have been interesting, well structured, and relevant to real professional expertise rather than feeling like repetitive task work. The instructions are generally detailed and clear, which makes it easier to understand what is expected and produce work to the right standard. I also appreciate the way more complex projects are broken into defined stages, with clear quality expectations. Communication and response times have been good, and my experience with the payment process has also been straightforward. What I particularly value is the opportunity to work on challenging projects where subject-matter knowledge, judgement, and attention to detail actually matter. Overall, OpenTrain AI has felt professional, organised, and respectful of contributors’ expertise. I would be happy to continue working with them and would recommend the platform to other experienced professionals looking for meaningful AI-related project work.