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I’m finalising an AI-powered platform and need sharp-eared, detail-oriented linguists to put every language feature through its paces. Your mission is to chat with the model, listen to its speech output, inspect translations, and flag anything that sounds odd, unnatural, or simply wrong. Native-level proficiency in at least one of the target languages is essential so that slang, register, and subtle pronunciation issues don’t slip past us. Target languages • Chinese • Japanese • Korean • English • Spanish • German • Russian • Swedish • Polish • Italian • Dutch • Romanian • Arabic What you’ll be testing • LLM text responses for relevance, coherence, and tone • TTS (Text-to-Speech) for clarity, natural rhythm, and correct pronunciation • Forward and back translations for accuracy and cultural fit Deliverables 1. A short screen-capture or audio snippet (if TTS is involved) showing the issue 2. A concise written explanation that pinpoints the problem and suggests a native-sounding fix 3. Completion of a feedback form for each test session so we can track recurring patterns Acceptance criteria • Every reported issue must be reproducible with clear steps or a timestamped clip • Feedback should be written in English plus the target language when relevant • Suggestions must be actionable (e.g., “stress the second syllable,” “replace with colloquial synonym”) We work in iterative sprints; expect quick turnarounds and prompt follow-up questions from our engineering team. If you’re ready to use your linguistic instincts to make AI sound truly native, I’d love to see a brief note on which language(s) you’ll cover and any prior testing or localisation experience you can bring to the table.
Project ID: 40659536
11 proposals
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Active 10 hours ago
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11 freelancers are bidding on average ₹1,049 INR/hour for this job

I am a native Chinese speaker based in Hong Kong, proficient in both traditional and simplified Chinese. My strong language skills enable me to write, read, and translate complex content accurately. Over the years, I have completed numerous translation projects from English to Chinese, with a proven track record of delivering high-quality work that meets deadlines and exceeds expectations. With extensive experience in translation, I ensure that content is accurately adapted while preserving its tone and meaning. My academic background in Biomedical Engineering further enhances my ability to handle technical and specialized translations. I am also skilled in writing general articles on topics such as engineering, medicine, and more. My expertise extends to SEO writing, where I create optimized content across industries like tourism, cooking, IT, and healthcare, helping clients improve their online visibility. I pride myself on delivering more than 10,000 words daily while maintaining exceptional quality. My ability to manage multiple projects efficiently ensures that deadlines are met without compromising on excellence. Positive feedback from previous employers highlights my reliability, attention to detail, and dedication to producing outstanding results.
₹1,000 INR in 40 days
4.7
4.7

Dear client, I'm a native Chinese speaker with an M.A. in English Language and Culture and 20 years of language teaching experience at a Chinese university. Last month, I completed "Mandarin Professional Assessment Creation," a TTS evaluation project testing naturalness, pronunciation, and rhythm, and received a highly positive review from my client (as shown in my profile). I excel at identifying subtle register slips, awkward translations, and pronunciation quirks that non-natives miss. I can provide clear, actionable feedback with screen/audio clips. Available for iterative sprints with quick turnarounds. Happy to cover Chinese and cross-check English translations. Looking forward to collaborating! Regards, Wei
₹1,250 INR in 15 days
1.0
1.0

Hi there, The moment I read "Multilingual AI Linguistic Testing -- 2", I knew it was a strong match for exactly what we do best. I don’t just want to tick the boxes here; my aim is to hand you something that genuinely goes beyond what you pictured. From your brief I can see this involves ai, llm, chatbot — all areas we handle in-house. We specialise in Translation, Spanish Translator, Hebrew Translator, English (US) Translator, which lines up directly with what you need. How we'd approach it: - Clarify the use-case, inputs and the exact output you expect - Build and integrate the model / automation pipeline - Evaluate accuracy and tune against real examples - Deploy with monitoring and a clear handover Happy to work hourly with transparent time tracking and regular check-ins. You can count on tight communication, on-time delivery, and a result that’s effortless to sign off on. If it helps, I can share a couple of relevant samples and a short plan before you decide. Looking forward to it! Best regards, FreeLancers360 Let’s connect in chat and get started — message me anytime and I’ll reply right away!
₹750 INR in 5 days
0.0
0.0

Hello, I am an Italian native speaker and I have experience in those type of tasks. I can start to work immediately. Please feel free to reach out!
₹1,500 INR in 20 days
0.0
0.0

Hi, I’m a native Chinese (Mandarin) speaker with strong attention to detail and a good sense of natural, everyday Chinese expression. I can help test the Chinese side of your platform, including: * LLM responses for naturalness, relevance, tone, and context * Mandarin TTS for pronunciation, rhythm, pauses, and unnatural wording * Chinese ↔ English translations for accuracy and cultural fit * Clear reproduction steps, screenshots/audio clips, and structured feedback I will not just mark something as “incorrect.” For example, if a sentence is grammatically correct but sounds too formal, unnatural, or machine-translated in Chinese, I will explain why and suggest a more native-sounding alternative. I am careful, patient, comfortable following detailed testing instructions, and can provide feedback in both Chinese and English as required. I would be happy to complete a small sample test first so you can evaluate the quality of my feedback before assigning more sessions. I can start immediately and respond promptly during testing sprints. Thank you.
₹850 INR in 40 days
0.0
0.0

I'm a native Italian, expert in AI responses evaluation. I have already done similar tasks, and I'm ready for a sample test.
₹1,000 INR in 30 days
0.0
0.0

Chinese native speaker. Translation experence in science and literancy. Familiar with AI development.
₹1,000 INR in 40 days
0.0
0.0

Hi, I am a native Italian linguist and AI quality specialist covering Italian (Native) and English (Fluent). With experience testing LLMs and datasets for platforms such as Outlier AI and RWS Group, I provide precise, actionable feedback to engineering teams. TTS & Audio QA: Fast identification of unnatural cadence, stress errors, and synthetic artifacts in Italian. LLM & Translation QA: In-depth evaluation of tone, register, and idiomatic accuracy for forward/back translations. Deliverables: Reproducible reports with clips, clear diagnostic notes in English, and native-sounding fixes. Available immediately for fast-paced sprints. Best regards, Renato Detassis
₹1,111.11 INR in 20 days
0.0
0.0

Hi I am Erinc I am a Full-stack Developer since 2020 knowledgeable in Python and AI APIs. I can help with finalising AI-powered platform project. I can help with English and Turkish. Looking forward to hear from you. Thanks for your consideration.
₹800 INR in 40 days
0.0
0.0

Hello! I have native fluency in Chinese and English, with professional working proficiency in Japanese and Korean. I have worked on multiple translation and localisation projects. I am comfortable documenting issues with screen-captures, audio snippets and can write clear bug reports. Looking forward to working with you!
₹1,030 INR in 20 days
0.0
0.0

Pune, India
Member since Aug 20, 2026
₹750-1250 INR / hour
$250-750 USD
$250-750 USD
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$8-15 USD / hour
€8-30 EUR
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$250-750 USD