We build AI systems
that actually work.

Karat Labs is an AI intelligence company. We engineer language models, build reliability infrastructure, and design autonomous agents for teams that need more than a wrapper around an API.

See Our Work Talk to Us

LLM EngineeringAgent SystemsEvaluation InfrastructureRAG PipelinesFine-TuningMLOpsResearch & PrototypingAI StrategyReliability EngineeringVector DatabasesLLM EngineeringAgent SystemsEvaluation InfrastructureRAG PipelinesFine-TuningMLOpsResearch & PrototypingAI StrategyReliability EngineeringVector Databases

✕ THE PROBLEM

Most AI projects fail.
Not because of the model.

Our Approach

Research-first AI. Built to last.

A complete AI engineering practice, from evaluation infrastructure to production deployment. No shortcuts. No hand-offs.

Evaluation First

We measure before we ship. Every system gets an eval harness before it gets a UI.

Full Ownership

No hand-offs. We own infra, evals, integration, and product under the same roof.

Battle-Tested

Red teaming, regression testing, and reliability engineering built into every engagement.

How It Works

We replace fragmented vendors with one integrated practice.

Your Data

Models, Prompts, Context

Karat Labs

Full-Stack AI Engineering

Eval HarnessAgent LoopsFine-TuningRAG PipelinesMLOpsObservability

Results

Reliable, Tested, Deployed

✕Generic AI VendorsReplaced

Accuracy94%

Coverage87%

Reliability99%

Research-First

Measure before you ship.

We build evaluation pipelines before we build products. Quality is defined, measured, and validated before anything reaches production.

Prompts01

Models02

Evals03

Infra04

Deploy05

Full-Stack AI

Own the whole stack.

From raw prompts to production infrastructure. Evals, integration, infra, and product live under the same roof. No hand-offs. No gaps.

Agent Loop

Explore

Plan

Execute

Tools

Memory

Verify

Agent Engineering

Systems that act, not just respond.

We design autonomous agents that plan multi-step tasks, use tools, coordinate with other agents, and operate within defined boundaries.

99.9%

Uptime

<200ms

Latency

94%

Test Coverage

Built to Last

No demos dressed as products.

We build systems designed for the long run. Reliability engineering, regression testing, and production-grade infrastructure from day one.

Capabilities

From model engineering to production infrastructure, we cover the full AI stack.

Understands your codebase.

We build connected models of your data, dependencies, and business logic so AI reasoning happens across your entire system.

Catches regressions early.

Eval harnesses that detect quality drift when models update, prompts change, or data shifts. Before your users notice.

Plans before acting.

Discovery, architecture, evaluation criteria, then build. We define success before we write a line of code.

Executes complex AI workflows.

From RAG pipelines to multi-agent orchestration. We coordinate models, tools, and infrastructure into production systems.

Isolates risk.

Sandboxed experiments, staged rollouts, canary deployments. We test in isolation so production stays stable.

Delivers at speed.

Optimized inference pipelines, efficient model serving, and cost-conscious infrastructure. Performance without waste.

Engineering First

Built for engineering teams

Our workflow is built around measurement, evaluation, and production-grade delivery.

karat-labs-terminal

FAQ

Frequently asked questions.

We focus on LLM engineering, evaluation infrastructure, agent systems, AI infrastructure (MLOps), and strategic consulting. We build production AI systems, not demos. Our work spans prompt architecture, fine-tuning, RAG pipelines, multi-agent orchestration, and the reliability engineering that makes these systems trustworthy at scale.

We are engineers and researchers, not resellers. We build evaluation harnesses before products. We measure quality systematically. We own the full stack from prompts to production infrastructure. Most AI teams ship fast and break things. We are the team that makes sure things do not break.

Every engagement starts with discovery: understanding the problem, the data, and what success looks like. Then we define the architecture, evaluation criteria, and delivery plan. We build iteratively against quality benchmarks, run our eval harness and red team the system, then deploy with monitoring. AI systems improve over time, and we build with that in mind.

We work across SaaS and tech, legal tech, healthcare, fintech, e-commerce, and education. Our approach is industry-agnostic because the engineering fundamentals (evaluation, reliability, production-grade infrastructure) apply everywhere. What matters most is whether the problem is worth solving with AI.

Karat Labs is the AI and R&D division of 404 Studios Pvt Ltd, a full-service web and app development studio. The two share founding team, ownership structure, and values. When your project needs both product development and AI engineering, the full 404 Studios group has you covered.

Visit our contact page or email hello@karatlabs.in. Tell us about your problem, your current setup, and what you are trying to achieve. We respond within 1 to 2 business days. We are honest about whether we are the right fit for your project.

Have a problem worth solving?

Whether you are building from scratch or trying to make an existing AI system more reliable, we would like to hear about it.

Start a Conversation Our Services

We build AI systemsthat actually work.

Most AI projects fail.Not because of the model.