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Petr C.
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Petr C.

Czech AI Localization & Subtitle QA Specialist | Natural Czech for AI

Most AI-generated Czech is technically correct. But that's not enough. Native speakers instantly notice when something feels translated, overly literal, or simply unnatural. The words are correct — the language isn't. That's where I help. I specialize in Czech AI localization, subtitle QA, proofreading, and language review. My work is focused on one thing: making Czech sound natural, fluent, and believable to real people. Whether it's subtitles, chatbot responses, app content, websites, onboarding flows, or AI-generated text, I adapt the language so it feels like it was originally written in Czech — not generated by a machine. Over the last few years, I've worked on AI-generated subtitles, chatbot testing, localization projects, proofreading, transcription, and Czech language QA. I understand the difference between a translation that is merely correct and one that actually works for the end user. What clients typically hire me for: • AI localization and post-editing • Subtitle QA and dialogue adaptation • Czech proofreading and language review • Chatbot and AI response evaluation • App, website, and UI localization • Naturalization of AI-generated content Why clients keep coming back: • 100% Job Success Score • Top Rated freelancer • 45+ completed projects • Long-term ongoing collaborations • Fast communication and reliable delivery I don't just correct Czech. I make it sound like Czech.

šŸ‡ØšŸ‡æBrno, Czech Republic$30/hr100% JSS4.80 (33)Since Jul 2023
MRR
$640
šŸŒ#65.5K/398K
šŸ‡ØšŸ‡æ#82/647
Recent Earnings
$3,837
šŸŒ#65.5K/398K
šŸ‡ØšŸ‡æ#82/647
Total Earnings
$6,919
šŸŒ#218K/398K
šŸ‡ØšŸ‡æ#375/647
Avg. Per Project
$126
šŸŒ#280K/398K
šŸ‡ØšŸ‡æ#507/647
Recent Projects
12
11f2h
šŸŒ#14.4K/398K
šŸ‡ØšŸ‡æ#17/647
Total Projects
55
55f8h
šŸŒ#52.9K/398K
šŸ‡ØšŸ‡æ#105/647
MRR Performance Over Time
$50k$25k$0
6 mo ago3 mo agoNow
Coming SoonGathering historical data
World Skill Rankings
of 144
#19
CzechTop 13%
#19English to Czech Translation
#98Subtitling
#220Localization
#315AI Content Editing
#445Data Annotation
#977Quality Assurance
#1,480AI Chatbot
#1,682Proofreading
#1,862Translation
#2,167English
šŸ‡ØšŸ‡æCzech Republic Skill Rankings
of 5
#1
AI ChatbotTop <0.01%
#1Data Annotation
#2AI Content Editing
#2Subtitling
#3Localization
#4Quality Assurance
#11English
#14Czech
#17Proofreading
#17English to Czech Translation
#21Translation
Petr C. — Top 13% in Czech Republic | UpworkMRR