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Dilip K.

Dilip K.

AI Model Training | RLHF, Data Annotation, Chatbots & Automation

AI Model Training | RLHF | Data Annotation | LLM Evaluation | AI Chatbots | AI Automation Need accurate AI training data, human feedback, multilingual annotation, or an intelligent chatbot? I help AI companies, startups, and businesses prepare, label, evaluate, and improve datasets and AI workflows across English, Hindi, and Gujarati. My services cover text, images, photos, videos, audio, speech, documents, and multimodal datasets. I work to your annotation guidelines, quality targets, and delivery format, from small pilots to ongoing projects. AI MODEL TRAINING & RLHF • Reinforcement Learning from Human Feedback (RLHF) • Human preference ranking and response comparison • Supervised fine-tuning (SFT) dataset preparation • Prompt-response creation, labeling, and review • LLM evaluation for relevance, accuracy, reasoning, and instruction following • Hallucination, factuality, safety, and quality assessments • Human-in-the-loop (HITL) evaluation and feedback • Benchmark dataset preparation and validation DATA ANNOTATION & LABELING Image & Photo Annotation: • Bounding boxes, polygons, keypoints, and landmarks • Object detection, classification, and tagging • Semantic and instance segmentation • OCR, document images, and visual data labeling Video Annotation: • Frame-by-frame labeling and object tracking • Action recognition, event tagging, and timestamps • Video classification, segmentation, and activity labeling Audio & Speech Annotation: • Transcription and speech-to-text labeling • Speaker identification and diarization • Utterance segmentation, timestamps, and overlap handling • Audio event classification and speech data review Text & NLP Annotation: • Named entity recognition (NER) and entity extraction • Sentiment, intent, topic, and text classification • Dialogue annotation and conversational AI evaluation • Document labeling, search relevance, and content review MULTILINGUAL AI DATA: ENGLISH, HINDI & GUJARATI I support language-specific and multilingual AI projects in English, Hindi (हिन्दी), and Gujarati (ગુજરાતી). • Text and speech annotation in all three languages • Transcription, translation review, and localization QA • Language-specific prompt and response evaluation • Multilingual chatbot testing and conversation labeling • Speech recognition and voice AI training datasets • Consistency checks for language, meaning, and context AI CHATBOT DEVELOPMENT • Custom AI chatbots for websites and internal teams • ChatGPT, Claude, Gemini, and LLM API integrations • Retrieval-Augmented Generation (RAG) chatbots • Document Q&A and knowledge-base assistants • Customer support bots and multilingual chatbots • Chatbot testing, response improvement, and maintenance AI AUTOMATION & AI AGENTS • AI-powered workflow and business process automation • n8n, Make, APIs, webhooks, and system integrations • Custom AI agents and multi-step workflows • CRM, email, support, and document automation • Data extraction, classification, and automated reporting • Human approval steps and exception handling QUALITY CONTROL & DELIVERY Quality matters as much as volume. I follow clear instructions and project-specific standards, with review, correction, and validation built into the workflow. • Annotation guideline setup and pilot samples • Label consistency and independent quality review • Dataset cleaning, error correction, and validation • Structured outputs and agreed file formats • Confidential handling of project data • Progress updates, issue tracking, and feedback cycles WHY WORK WITH ME? • One partner for AI training data, evaluation, and automation • English, Hindi, and Gujarati language capabilities • Image, video, audio, text, and document annotation • Flexible project scope, from pilot batches to ongoing support • Clear communication, practical delivery, and quality focus Whether you need an RLHF specialist, AI model trainer, data annotator, LLM evaluator, AI chatbot developer, or automation expert, I can help translate your requirements into a clear workflow and dependable deliverables. Send me your requirements, sample data, or annotation guidelines. We can discuss the scope, expected accuracy, timeline, and best next steps. SUPPORTED PROJECT WORKFLOWS For annotation projects, we can begin with a sample to confirm the labels, edge cases, output format, and review process before scaling. For model evaluation, I can work with your scoring rubrics and help assess response quality across prompts, topics, and languages. For chatbot and automation work, I focus on useful integrations, clear handoffs, and testing with realistic examples. EXAMPLES OF DELIVERABLES • Labeled image and video datasets with consistent categories • Timestamped audio transcripts and speaker-labeled segments • Reviewed English, Hindi, and Gujarati text datasets • Ranked LLM responses with feedback and evaluation notes • Cleaned datasets ready for your training or QA pipeline • Chatbot prototypes, integrations, and automation workflows

🇮🇳Surat, India$20/hr100% JSS1.75 (26)Since Jul 2012

Earnings and projects

MRR
$33

Last 6 months ÷ 6

World#158,297 / 412k
🇮🇳Country#16,599 / 45.9k
Revenue, last 30 days
$0

Last 6 months: $198

Total earnings
$282k

Billed in all: $289k

World#8,666 / 412k
🇮🇳Country#1,361 / 45.9k
Per project
$9.4k

$99 in the last 6 months

World#17,188 / 412k
🇮🇳Country#1,829 / 45.9k
Projects, last 6 months
2
50% fixed50% hourly
World#88,918 / 412k
🇮🇳Country#10,198 / 45.9k
Projects in all
30

Across 39 contracts

23% fixed77% hourly
World#97,486 / 412k
🇮🇳Country#14,870 / 45.9k

Earnings, last 30 days

$289kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$280k$285k$290k$295kOct 8Oct 23Nov 7

Skill rankings: Top 34% in Natural Language Processing

Ranked by MRR among everyone on Upwork with the skill.

  1. #41RLHF76 freelancers · 🇮🇳 #6Top 54%
  2. #126Data Quality Assessment258 freelancers · 🇮🇳 #16Top 49%
  3. #175LLM API Integration359 freelancers · 🇮🇳 #30Top 49%
  4. #272Video Annotation464 freelancers · 🇮🇳 #28Top 59%
  5. #372Image Annotation592 freelancers · 🇮🇳 #24Top 63%
  6. #590AI Model Training1,135 freelancers · 🇮🇳 #90Top 52%
  7. #598Data Labeling1,093 freelancers · 🇮🇳 #35Top 55%
  8. #906Computer Vision2,498 freelancers · 🇮🇳 #131Top 36%