Making enterprise AI quality
repeatable.

Notes, case studies, and practical guides on building more reliable AI systems.

Apr 7, 2026

Why AI Projects Stall Between Prototype and Production

The demo worked. Here is what actually blocks teams from getting it into production.

Puneet Anand Puneet Anand Read post
Apr 7, 2026

LLM and Agentic Evaluation: Why Eval Dataset Coverage Matters More Than Size

The issue is rarely too few eval rows. It is eval data that misses the real spread of cases, slices, and failure modes.

Puneet Anand Puneet Anand Read
Jan 12, 2026

Long-Form Synthetic Data Generation: Same LLM, Dramatically Different Results

Same LLM, dramatically different results. DataFramer vs raw Claude on 50K-token document generation.

Alex Lyzhov Alex Lyzhov Read
Dec 19, 2025

Synthetic Text-to-SQL Data Generation with 100% SQL Validity Using Claude Haiku

From production SQL failure traces to 500 labeled, execution-validated eval samples — using only Claude Haiku.

Alex Lyzhov Alex Lyzhov Read
Apr 15, 2025

How a 3B Model Outperformed GPT-4o on Hallucination Detection: The Training, Evals, Validation, and Benchmark Synthetic Data Pipeline Behind HDM-2

A 3B open-source model beat GPT-4o at hallucination detection, built on purpose-built training and eval data.

Alex Lyzhov Alex Lyzhov Read
What we've learned building this
Apr 13, 2026

Why We Built DataFramer

We kept hitting the same wall. Here is what it was and what we built to fix it.

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Foundational reading on LLMs, RAG, and AI evaluation
Dec 5, 2024

An Overview of Retrieval-Augmented Generation (RAG) and Its Different Components

RAG components, retrieval strategies, and how to build systems that ground LLM outputs in real data.

DataFramer Team
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Dec 5, 2024

Top Problems with RAG Systems and Ways to Mitigate Them

The most common RAG failure modes and the best practices that address each one.

DataFramer Team
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Oct 18, 2024

LLM-as-Judge: Why It's Hard to Get Right and Why It Still Matters

When LLM-as-judge works, when it breaks down, and what it actually takes to build one you can trust.

DataFramer Team
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Sep 20, 2024

A Quick Comparison of Vector Databases for RAG Systems

ApertureDB, Pinecone, Weaviate, and Milvus compared on features, performance, and RAG use cases.

DataFramer Team
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Sep 19, 2024

A Practical Guide to Agentic LLM Frameworks

A practical overview of agentic LLM frameworks: reasoning, planning, tool use, and the real challenges of running them in production.

DataFramer Team
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Sep 10, 2024

How to Fix Hallucinations in RAG LLM Apps

Concrete techniques for diagnosing and reducing hallucinations in RAG-based LLM applications.

DataFramer Team
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Sep 10, 2024

An Expert's Guide to Picking Your LLM Tech Stack

A practical breakdown of every layer in the LLM stack: models, orchestration, storage, and ops.

DataFramer Team
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Sep 10, 2024

Top Strategies for Detecting LLM Hallucinations

Detection strategies for hallucinations in both RAG and non-RAG LLM applications, and the real tradeoffs between them.

DataFramer Team
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