AI App Development · India · LLM · RAG · AI Agents · Document AI · Fixed Price

AI App Development Company India —
LLM. RAG. AI Agents. Built to Ship.

XPndAI builds custom AI applications for enterprises and SaaS companies: LLM-powered products (Claude, GPT-4o, Gemini), RAG knowledge bases that answer questions from your documents, AI agent systems that work autonomously, and document AI that extracts data and pushes it to your ERP. Not a generic software house — exclusively AI apps, built to production standards. Fixed price from Delhi NCR.

AI STACK:

Claude APIGPT-4o GeminiLlama 3 LangChainLangGraph LlamaIndexpgvector PineconeFastAPI Next.jsReact Native
Delhi NCR based
LLM-first build
Fixed price
$20K starting
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AI App Development Services

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LLM-Powered Applications

Custom apps built on Claude, GPT-4o, Gemini, or open-source models (Llama 3, Mistral). Web (React/Next.js) and mobile (React Native). Production architecture: streaming responses, token management, system prompt engineering, function calling, structured output, and guardrails. Model-agnostic — not locked to one provider.

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RAG Knowledge Bases

Document Q&A systems where AI answers questions from your internal documents — contracts, policy manuals, product catalogues, SOPs. Built with LlamaIndex or LangChain, pgvector or Pinecone. Accurate citation, hallucination-minimised, role-based document access. Deployed on your own infrastructure.

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AI Agent Systems

Autonomous agents built with LangGraph or OpenAI Assistants. Agent reads inputs, calls tools (web search, database queries, API calls, code execution), makes decisions, and completes multi-step tasks without human handholding. Human-in-the-loop checkpoints at critical decision points. Enterprise reliability.

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Document AI Applications

Apps that extract structured data from PDFs, scanned images, and digital documents: invoices, contracts, forms, medical records, financial statements. Extracted data pushed to ERP, CRM, or database via API. 95%+ extraction accuracy. Built for enterprise document volumes.

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AI Features in Existing Products

Add AI capabilities to a SaaS product already in market: AI search (semantic, not keyword), AI summarisation of user content, AI extraction API, conversational AI assistant within the product, AI-powered recommendations. XPndAI builds the AI backend that plugs into your existing product via API.

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Voice AI Applications

Full-stack voice AI applications: STT (speech recognition for Hindi/English/regional), LLM reasoning, TTS (natural Indian-accent responses), telephony integration (Exotel, Plivo, Twilio). Inbound and outbound call workflows for customer support, collections, and sales automation.

Pricing

Fixed price. Source code yours. AWS/GCP/Azure deployment included.

Single AI App / Feature
$20K–$45K
One AI application or one AI feature added to an existing product. 6–10 weeks delivery.
AI Platform
$50K–$120K
Multi-feature AI platform: LLM app + RAG + agents + admin dashboard. 12–20 weeks.
Enterprise
$120K–$300K
Enterprise AI product build: multi-model, multi-tenant, enterprise security, compliance, analytics. 4–9 months.

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