LLM development · South Korea
LLM development company in South Korea
Detailed specifications, careful testing and reliable schedules, with a team overlapping most of your afternoon.
Clarigo Infotech is an LLM development company that builds custom applications on large language models such as OpenAI GPT, Anthropic Claude, Google Gemini and open-source models like Llama. We design the prompts, retrieval, tools and guardrails, connect the model to your data and systems, and run it in production with monitoring, evaluation and cost control.
Korean companies most often hire us for AI products, mobile apps and SaaS.
10+
Years of delivery
600+
Projects delivered
20+
Countries served
25-30
Days to a live MVP
Get a free consultation
Tell us what you need. A senior engineer replies within one working day.
Quality, detail and reliability
Teams in Japan and Korea expect precise specifications, thorough testing and schedules that hold. We plan in detail, report regularly and treat quality as non-negotiable.
Detailed specifications
Written requirements, screen specifications and acceptance criteria agreed before development.
Thorough testing
Automated and manual testing with reports at every milestone.
Reliable schedules
Realistic plans, regular written progress reports and early warning of any risk.
Long-term partnership
The same team maintains and improves the product after launch.
What we build with LLMs
Custom LLM applications
Assistants, copilots and internal tools built around your workflows, not a generic chat window.
LLM integration
Add GPT, Claude or Gemini to your existing product through secure, well-tested APIs.
Open-source and private models
Deploy Llama and other open models on your own cloud when data must stay in-house.
Fine-tuning and evaluation
Tune models on your examples and measure accuracy with test sets before and after launch.
Guardrails and safety
Input and output filtering, PII masking, grounding checks and human review where needed.
Cost and latency optimisation
Model routing, caching and prompt design that keep responses fast and bills predictable.
How we approach LLM development
Choosing the right model
There is no single best model. We compare OpenAI, Claude, Gemini and open-source options on your real tasks for accuracy, speed, cost and data handling, and design the app so the model can be swapped later without a rewrite.
Grounded in your data
Most business value comes from connecting the model to your documents, databases and tools. We use retrieval (RAG), function calling and agents so answers come from your information and actions happen in your systems.
Built for production, not demos
We add evaluation test sets, logging, monitoring, rate limits, fallbacks and cost alerts from day one, so the app keeps working well after launch and you can see exactly what it is doing.
Security and compliance
Data minimisation, encryption, access control and providers configured not to train on your data. For healthcare we build to HIPAA requirements with BAAs in place for any service that touches PHI.
Remote, but close to South Korea
Time-zone overlap
South Korea is three and a half hours ahead of India, so our working days overlap for most of your afternoon.
Korea's Personal Information Protection Act (PIPA)
We design to PIPA: consent, purpose limits, security controls and rules for overseas transfers, and we sign NDAs before work starts.
Billing
Invoices in Korean won (KRW) or US dollars. Typical senior rates are $25 to $49 (USD) per hour, or a fixed price for a defined scope.
Industries we work with in South Korea
Korean companies work with us on AI features, mobile apps and SaaS for global markets, with detailed specs, testing and regular written reports.
Semiconductors and electronics
Chip and device makers drive AI and software R&D. We build AI agents, assistants and automation around these workflows.
Automotive and batteries
Carmakers and battery firms build connected EV software. AI here usually means faster reporting, fewer manual steps and better customer replies.
Gaming and entertainment
Game and K-content firms reach global fans digitally. We start with one costly process and automate it end to end.
Beauty and cosmetics
K-beauty brands sell worldwide through e-commerce. We build AI agents, assistants and automation around these workflows.
Your working day with us
Our team's hours, in Korean time
13:30–23:00
Monday to Friday
Overlap with your working day
13:30–18:00
About 4.5 hours every day
Daily stand-up
14:00
Korean time, plus written updates every evening
Built for how South Korea works
Messaging channels
Languages
Local payments
Data hosting
AWS Asia Pacific (Seoul) and Google Cloud asia-northeast3 (Seoul), in your own cloud account, so data stays where your rules require.
How it works
Week 1: discovery and design
We agree the use case, success measures and data, and show you a clickable design.
Weeks 2-3: build and integrate
We build, connect it to your systems and data, and demo working software every week.
Week 4: test and launch
We test with real cases, add monitoring and guardrails, then go live.
After launch: improve and scale
The same engineers keep tuning quality, cost and features as usage grows.
See what we've built
Try it yourself, free
Free browser tools from our team. No sign-up needed.
LLM development company: questions from South Korea
Do you work with companies in South Korea?+
Yes. Clarigo Infotech works with companies across South Korea, including Seoul, Busan, Incheon, as part of clients in 20+ countries. Korean companies most often hire us for AI products, mobile apps and SaaS. We work remotely from India with one in-house team.
What time-zone overlap do we get from South Korea?+
South Korea is three and a half hours ahead of India, so our working days overlap for most of your afternoon.
How do you handle Korea's Personal Information Protection Act (PIPA)?+
We design to PIPA: consent, purpose limits, security controls and rules for overseas transfers, and we sign NDAs before work starts.
Which currency do you bill in, and what does it cost?+
We bill in Korean won (KRW) or US dollars. Senior engineers typically cost $25 to $49 (USD) per hour, and fixed-scope projects such as an MVP in 25 to 30 days are quoted after a free consultation.
Do you support KakaoTalk?+
Yes. Customers in South Korea often prefer KakaoTalk and Instagram and Naver Band, so we connect chatbots, notifications and support flows to them.
Do you work with semiconductors and electronics companies?+
Yes. Semiconductors and electronics is one of South Korea's key sectors, and aI here usually means faster reporting, fewer manual steps and better customer replies.
What time are your meetings in Korean time?+
Our team works 13:30–23:00 Korean time, so we overlap with your day from 13:30–18:00. Daily stand-ups are usually at 14:00 your time.
How long does it take to build an LLM application?+
A focused LLM app for one workflow typically goes live in 25 to 30 days. Larger platforms are delivered in phases.
How much does LLM development cost?+
Cost depends on scope, integrations and usage. We give a scoped quote after a free consultation and explain both build cost and monthly running cost.
LLM development company around the world
Worldwide page →North America
UK & Europe
UKGermanyNetherlandsSwitzerlandIrelandSwedenFranceItalySpainPortugalBelgiumLuxembourgDenmarkNorwayFinlandAustriaPoland
Middle East