AI Data Services / Data Annotation / Model Training Datasets

Data Labeling for AI Training, Fine-Tuning and Model Evaluation

Srishta Technology provides data labeling and annotation services for AI teams that need clean, consistent and model-ready datasets across images, videos, text, audio, documents and multimodal data.

Image

CV datasets

Text

NLP & LLM

Audio

Voice AI

Docs

OCR & extraction

Model-ready data labeling pipelinetaxonomy · human labeling · QA · exportRaw dataImagesbbox · masksVideostrackingTextNLP · LLMAudiospeechDocsOCR fieldsLabel taxonomyClassesRulesEdge casesData prepCleanDeduplicateMetadataHuman annotationtrained annotators + toolsQA reviewSamplingConsensusCorrectionsExportJSONLCOCOYOLODataset splittrainvalidtestModel looperrors → relabel

Multi-format data

Images, videos, text, audio, documents and mixed datasets

Training ready

Labels aligned with model training and evaluation workflows

Quality controlled

Guidelines, pilot batches, review and correction cycles

Flexible exports

CSV, JSON, JSONL, COCO, YOLO, SRT, VTT or custom schema

Why labeling matters

AI models are only as useful as the data they learn from

Raw data does not automatically become training data. A model needs clear labels, consistent rules, useful metadata, reviewed examples and delivery formats that match the training pipeline.

We help teams convert raw files into structured datasets for supervised learning, fine-tuning, evaluation, model improvement and AI product development.

Services

Data labeling services for different AI training needs

Use this page as the main annotation hub, with focused service pages for each data type.

Computer vision

Image Annotation

Label objects, regions, defects, products, scenes, faces, medical images and visual features for computer vision model training.

  • Bounding boxes, polygons and segmentation
  • Classification and tagging
  • Object detection and defect labeling
  • COCO, YOLO, Pascal VOC or custom exports
Frame and motion

Video Annotation

Annotate video frames, moving objects, actions, events, activities and temporal sequences for AI systems.

  • Object tracking across frames
  • Action and event labeling
  • Frame-level or clip-level annotations
  • Useful for surveillance, sports, retail and mobility
Language AI

Text Annotation & NLP Labeling

Prepare text datasets for NLP, LLM fine-tuning, classification, entity extraction, sentiment analysis and moderation systems.

  • Intent and topic classification
  • Named entity recognition
  • Sentiment and toxicity labeling
  • Prompt-response and preference datasets
Voice AI

Audio & Speech Annotation

Label speech, speakers, timestamps, intent, sentiment, emotion, sound events and multilingual audio datasets.

  • Transcription and diarization
  • Intent, topic and emotion labels
  • Audio classification and event labels
  • CSV, JSON, SRT, VTT or custom delivery
Document AI

Document & OCR Labeling

Annotate scanned documents, forms, invoices, receipts, contracts and records for OCR, extraction and document intelligence.

  • Field extraction labels
  • Table and layout annotation
  • Document classification
  • OCR correction and validation
Advanced AI

Multimodal Dataset Labeling

Create datasets where image, text, audio, video or document context must be labeled together for multimodal AI systems.

  • Image-text pair validation
  • Video-audio-text labels
  • Caption and description review
  • Cross-modal quality checks

Low-quality labeling

Poor labels create unreliable models

  • Unclear labels and changing definitions
  • No edge-case rules for ambiguous data
  • Different annotators follow different standards
  • No pilot batch before large-scale labeling
  • Delivery format does not match model pipeline
  • No quality review or correction loop

Model-ready labeling

We label data with training outcomes in mind

  • Taxonomy and guidelines before scale
  • Pilot labeling to validate rules
  • Reviewer checks and correction cycles
  • Consistent output schemas and metadata
  • Batch reports and issue tracking
  • Labels aligned with model training and evaluation

Labeling workflow

From raw data to reviewed training dataset

A clear workflow reduces ambiguity and keeps labeling quality consistent as the project scales.

01

Define taxonomy

We define label categories, edge cases, annotation rules, output format and acceptance criteria.

02

Prepare data

Files are organized, sampled, cleaned, deduplicated and mapped with metadata where required.

03

Pilot batch

A small batch is labeled first to validate guidelines, ambiguity, cost and quality expectations.

04

Scale labeling

Approved guidelines are used for larger batches with annotator training and progress tracking.

05

Quality review

Reviewer checks, sampling, consensus review and correction cycles improve consistency.

06

Deliver dataset

Final labels are exported in the agreed format with notes, issue logs and batch-level quality summary.

Capabilities

Capabilities for reliable AI dataset preparation

Custom annotation guidelines

Project-specific rules, examples, edge cases and acceptance criteria before labeling starts.

Taxonomy design

Clear label categories for objects, intents, topics, entities, defects, emotions, actions or fields.

Human QA workflow

Reviewer checks, sampling, disagreement review, corrections and quality reporting.

Model-ready exports

Delivery in CSV, JSON, JSONL, COCO, YOLO, Pascal VOC, SRT, VTT or custom schemas.

Secure data handling

Access rules, private workspaces, redaction guidance, PII handling and controlled delivery.

Dataset structuring

File organization, metadata mapping, batch naming, split planning and version control.

Edge-case handling

Guidelines for unclear data, low-quality samples, overlap, ambiguity and out-of-scope examples.

Continuous improvement

Feedback from model errors, reviewers and edge cases can be used to improve future batches.

Model types

Datasets for different AI model categories

Computer vision

Detection, segmentation, classification, OCR, visual inspection and image understanding models.

NLP and LLMs

Text classification, NER, sentiment, moderation, prompt-response, instruction and preference datasets.

Speech and voice AI

ASR, speaker diarization, voice assistants, call analytics and emotion recognition models.

Document AI

Invoice extraction, form understanding, contract analysis, receipt parsing and OCR correction models.

Recommendation and ranking

Preference labels, relevance judgments, ranking datasets and search-quality evaluation data.

Multimodal AI

Datasets combining images, text, video, audio and document context for advanced AI systems.

Quality process

Quality checks built into every labeling project

Labeling quality depends on clear rules, trained annotators, reviewer checks and a feedback loop that catches repeated issues before they affect the full dataset.

Guideline-first labeling

We do not start large annotation batches without rules. Guidelines define what to label, what to ignore and how to handle unclear cases.

Pilot before scale

A pilot batch helps test the taxonomy, confirm the delivery schema and identify ambiguity before large-scale work begins.

Reviewer validation

A review layer checks samples or full batches depending on project criticality, complexity and required accuracy.

Correction and feedback loop

Issues found during QA are corrected and added back into guidelines so later batches become more consistent.

Use cases

Practical data labeling use cases

Object detection training data
Image segmentation datasets
Video object tracking datasets
LLM instruction tuning data
Text classification datasets
Named entity recognition datasets
Speech transcription datasets
Call intent and sentiment datasets
OCR and document extraction datasets
Content moderation datasets
Search relevance and ranking labels
Multimodal model training datasets

Industries

Data labeling for industry-specific AI models

Healthcare AI

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Label medical images, clinical text, voice notes, scanned records, patient support data and healthcare workflow datasets.

Medical imagesClinical textHealthcare voice

Retail & E-commerce

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Prepare product images, catalog data, customer reviews, support queries, inventory visuals and recommendation labels.

Product taggingCatalog labelsReview sentiment

Finance & Insurance

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Annotate documents, customer conversations, claims data, fraud signals, compliance records and financial text.

Claims labelsDocument extractionRisk tags

Manufacturing AI

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Prepare industrial data, inspection images, machine records, maintenance documents and production datasets for AI models.

Quality inspectionMachine dataProduction records

Education & EdTech

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Label learning content, speech, text, student responses, assessment data and multilingual training examples.

Learning contentSpeech scoringText labels

Enterprise AI

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Prepare internal documents, emails, support tickets, process data, audio calls and knowledge datasets for enterprise models.

TicketsDocumentsInternal knowledge

Delivery formats

Delivery formats for training, fine-tuning and evaluation

Images

COCO, YOLO, Pascal VOC, LabelMe, CSV, JSON or custom schema.

Text

CSV, JSON, JSONL, token-level labels, span annotations or prompt-response format.

Audio

CSV, JSON, JSONL, SRT, VTT, timestamped transcripts or speaker-turn schema.

Documents

Field-level JSON, table structures, OCR correction output, page-level labels or custom extraction schema.

Video

Frame-level JSON, tracking IDs, event timelines, clip-level labels or custom temporal schemas.

Custom ML pipelines

Project-specific schema aligned with your internal training, validation or evaluation workflow.

Annotation stack

Labeling capabilities and project deliverables

Annotation domains

ImageVideoTextAudioDocumentsMultimodal

Label types

Bounding boxesSegmentationNERIntentSentimentTranscription

Dataset tasks

ClassificationDetectionExtractionRankingModerationQA review

Delivery formats

CSVJSONJSONLCOCOYOLOSRT / VTT

Quality process

GuidelinesPilot batchReviewer checksSampling QACorrection cycles

Training support

Train/valid/test splitsMetadataVersioningIssue logsQuality reports

Dataset readiness

Prepared for AI teams, product teams and training pipelines

We can support pilots, recurring annotation batches, evaluation datasets, data cleanup, label taxonomy improvement and model feedback-based relabeling.

Pilot datasets

Validate labels, cost, timelines and model usefulness before scaling.

Training datasets

Prepare labeled examples for supervised learning and model development.

Evaluation datasets

Create reviewed test sets for model benchmarking and quality checks.

Improvement loops

Use model failures and edge cases to create better future annotation batches.

Related Services

Explore focused annotation services

Discover specialized data annotation services for building accurate AI, machine learning, computer vision, and natural language processing solutions.

Book a discussion

Tell us about your data labeling requirement

Share your data type, volume, label categories, quality expectations, timeline and delivery format. We will help you plan the right labeling workflow.

FAQ

Data labeling questions

Yes. We can handle projects that include image, video, text, audio, documents or multimodal data, depending on the annotation scope and quality requirements.
Yes. Guideline creation is an important part of the process. We can help define label taxonomy, examples, edge cases, output format and quality checks.
Yes. We can deliver datasets in common model-training formats such as YOLO, COCO, Pascal VOC, CSV, JSON, JSONL, SRT, VTT or custom schemas.
Yes. Quality assurance can include pilot annotation, reviewer validation, sampling, consensus checks, correction cycles and batch-level quality notes.
Yes, with the right controls. We can define access rules, secure handling, PII redaction guidance, restricted delivery and project-specific privacy processes.
Yes. Labeled datasets can support supervised learning, evaluation, fine-tuning, model improvement and AI system testing depending on the target model and task.

Prepare labeled datasets your AI models can actually learn from

From pilot annotation to production-scale labeling, we can help structure your data for training, evaluation, fine-tuning and model improvement.

Explore Audio Annotation