Very fast serve
Very fast serve
By N.sujatha
Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Great
109 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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 The Fair Hearing, with an average rating of 4.0 out of 5.
Showing 68 reviews with 5 stars · Clear filters
Very fast serve
By N.sujatha
Application easy for newbie
By customer A.
جاااامد اويييب
By مالك اشرف مصطفي ع.
الموقع ممتاز جدا
By Hneen A.
This is genuine platform
By Ramkrishna D.
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.
By Keith K.
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
By Feroz
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.
By customer