AI Trainer – Fluent Lithuanian Speaker - Edinburgh, UK

Prolific; United States; Remote; USD 28,000 - 36,000; Part time

Job summary

Prolific is seeking fluent Lithuanian speakers to evaluate AI-generated text and voice, ensuring natural and culturally authentic Lithuanian language use. You will listen to audio clips, compare with text, and rate naturalness and authenticity from home.

Ideal candidates have strong Lithuanian language skills, plus English instruction-following ability and keen attention to detail. A PayPal account is required to receive payment.

Qualifications

• Fluent Lithuanian speaker with strong command of natural, everyday Lithuanian.
• Ability to distinguish subtle differences in accent, tone and vocal delivery.
• Fluent English skills for instruction following and reporting.
• High attention to detail; linguistics or translation background is a plus.
• Access to a quiet environment and good quality headphones/speakers.
• Must have a PayPal account to receive payment.

Responsibilities

• Side-by-side evaluation of text and voice snippets to assess quality and authenticity.
• Naturalness assessment of AI-generated audio and rating of naturalness.
• Quality control to identify unnatural tone or pronunciation.
• Contextual review to ensure intonation matches cultural context.
• Data tagging with feedback on naturalness, tone and authenticity of audio.

Skills

Lithuanian fluency

Linguistic nuance

English communication

Attention to detail

Quiet environment setup

PayPal account

Job description

AI Trainer - Fluent Lithuanian Speaker

About Prolific

Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world.

Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills.

The role

We are seeking fluent Lithuanian speakers to act as evaluators. AI models are now learning to communicate with human-like nuance, and we need fluent speakers to ensure these models understand the depth and nuance of the Lithuanianlanguage.

You will be completing side-by-side evaluations of both text and voice snippets, assessing how naturally and authentically the AI captures Lithuanianspeech. This includes listening to audio clips and identifying how natural the voice sounds. This is a fast-paced project where your ear for detail directly influences how AI understands human language.

Researchers looking for your skills tend to pay between $20-26/hr. You must be prepared to complete paid tasks that require one hour of uninterrupted work, though many are shorter.

What you’ll bring

• Thai language fluency: you must be a fluent Lithuanian speaker with a strong command of natural, everyday Lithuanian
• Linguistic nuance: an ability to distinguish subtle differences in accent, tone, and vocal delivery
• Communication: fluent English skills for instruction following and reporting
• Soft skills: high attention to detail; backgrounds in linguistics or translation are a plus
• Technical setup: access to a quiet environment and good quality headphones/ speakers
• A PayPal account to receive payment from our clients

What you’ll be doing in the role

• Side-by-side evaluation: comparing text and voice snippets to assess quality and authenticity
• Naturalness assessment: listening to AI-generated audio and rating how natural the voice sounds
• Quality control: identifying where the AI’s tone or pronunciation feels unnatural or culturally mismatched
• Contextual review: identifying whether intonation matches the cultural context of the conversation
• Data tagging: providing feedback on the naturalness, tone, and authenticity of the audio

Why Prolific is a great platform to join as a Participant

Joining our Expert Network will give you the chance to influence the AI models of the future using your professional expertise. Once you pass our assessment, you can join Prolific in just 15 minutes, and start enjoying competitive pay rates, flexible hours, and the ability to work from home.

We’ve built a unique platform that connects researchers and companies with a global pool of participants, enabling the collection of high-quality, ethically sourced human behavioural data and feedback. This data is the cornerstone of developing more accurate, nuanced, and aligned AI systems.

We believe that the next leap in AI capabilities won’t come solely from scaling existing models, but from integrating diverse human perspectives and behaviours into AI development. By providing this crucial human data infrastructure, Prolific is positioning itself at the forefront of the next wave of AI innovation – one that reflects the breadth and the best of humanity.

Links to more information on Prolific

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