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AI Explore

Principal AI & Data Engineer

Joined Joined on  Personal website https://notepatra.org/

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I Gave Quantized Checkpoints a Type, and the Type Immediately Caught Real Bugs

I Gave Quantized Checkpoints a Type, and the Type Immediately Caught Real Bugs

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11 min read
Your MCP Tools Cost 6.6x More Context Than They Need. I Measured It Against the New Spec.

Your MCP Tools Cost 6.6x More Context Than They Need. I Measured It Against the New Spec.

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7 min read
samkhya v1.2: We Shipped a "Provable" Bound. It Wasn't Provable.

samkhya v1.2: We Shipped a "Provable" Bound. It Wasn't Provable.

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9 min read
samkhya v1.1: Never Regress — Putting a Model in Your Query Optimizer Without Letting It Wreck the Plan

samkhya v1.1: Never Regress — Putting a Model in Your Query Optimizer Without Letting It Wreck the Plan

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7 min read
samkhya v1.0: Plug Claude, GPT-4o-mini, or Local Ollama Into Your SQL Query Optimizer

samkhya v1.0: Plug Claude, GPT-4o-mini, or Local Ollama Into Your SQL Query Optimizer

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14 min read
LLM Security Needs Capability Scoping, Not Better Prompts

LLM Security Needs Capability Scoping, Not Better Prompts

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5 min read

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LLM Routers, Cascades, and Mixtures Fail in Different Tails

LLM Routers, Cascades, and Mixtures Fail in Different Tails

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5 min read
Edge AI's Real Bottleneck Isn't the Model, It's the Update Channel

Edge AI's Real Bottleneck Isn't the Model, It's the Update Channel

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5 min read
AI Agent Memory Needs Garbage Collection, Not Just Storage

AI Agent Memory Needs Garbage Collection, Not Just Storage

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5 min read
AI Guardrails Stop Bad Outputs. They Don't Stop Bad Actions

AI Guardrails Stop Bad Outputs. They Don't Stop Bad Actions

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5 min read
Reserved GPU Capacity Is a Hedge, Not a Discount

Reserved GPU Capacity Is a Hedge, Not a Discount

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5 min read
Video AI Breaks at the Sampling Rate, Not the Model

Video AI Breaks at the Sampling Rate, Not the Model

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5 min read
AI Coding Assistants Write Tests That Pass, Not Tests That Catch Bugs

AI Coding Assistants Write Tests That Pass, Not Tests That Catch Bugs

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5 min read
LLM Prompts Need API Contracts, Not Git Diffs

LLM Prompts Need API Contracts, Not Git Diffs

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4 min read
Open-Weight Models Are Portable. Your Local LLM Stack Isn't

Open-Weight Models Are Portable. Your Local LLM Stack Isn't

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5 min read
LoRA, DPO, Distillation: Post-Training Steps Don't Commute

LoRA, DPO, Distillation: Post-Training Steps Don't Commute

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5 min read
LLM Benchmarks Score a Model in a Vacuum, Not a System

LLM Benchmarks Score a Model in a Vacuum, Not a System

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4 min read
RAG Chunking Is a Schema Decision, Not a Preprocessing Step

RAG Chunking Is a Schema Decision, Not a Preprocessing Step

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5 min read
AI Agent Tool Calls Need Idempotency Keys, Not Retry Loops

AI Agent Tool Calls Need Idempotency Keys, Not Retry Loops

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5 min read
Why LLM Inference Batching Breaks: Prefill vs Decode

Why LLM Inference Batching Breaks: Prefill vs Decode

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5 min read
Airflow and Dagster Can't Backfill ML Experiments Right

Airflow and Dagster Can't Backfill ML Experiments Right

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5 min read
Feature Stores Version Tables. They Should Version Transforms

Feature Stores Version Tables. They Should Version Transforms

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5 min read
LLM Training Pipelines Need Rights Taint Tracking, Not Lineage

LLM Training Pipelines Need Rights Taint Tracking, Not Lineage

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5 min read
DuckDB and Arrow Win AI Data Prep, Then Hit a Wall at Serving

DuckDB and Arrow Win AI Data Prep, Then Hit a Wall at Serving

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5 min read
Synthetic Training Data Needs a Lineage Graph, Not More Volume

Synthetic Training Data Needs a Lineage Graph, Not More Volume

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5 min read
AI Agents Are Quietly Blowing Up Your SQL Warehouse Bill

AI Agents Are Quietly Blowing Up Your SQL Warehouse Bill

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5 min read
Text-to-SQL Agents Are Breaking the Semantic Layer dbt Built

Text-to-SQL Agents Are Breaking the Semantic Layer dbt Built

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5 min read
Embedding Drift Detection Is Broken by the Curse of Dimensionality

Embedding Drift Detection Is Broken by the Curse of Dimensionality

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3 min read
Kafka and Flink Hit a Wall at the Model Serving Boundary

Kafka and Flink Hit a Wall at the Model Serving Boundary

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4 min read
RAG Over Enterprise Lakehouse Data Has a Permissions Clock Problem

RAG Over Enterprise Lakehouse Data Has a Permissions Clock Problem

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5 min read
Vector Databases Are Missing a Foreign Key to the Model Version

Vector Databases Are Missing a Foreign Key to the Model Version

Comments 1
4 min read
Your Data Pipeline Passes Every Check While Your LLM Quietly Degrades

Your Data Pipeline Passes Every Check While Your LLM Quietly Degrades

Comments 1
5 min read
Apache Arrow and Apache DataFusion Now List ArrowMetal: Arrow Compute and a DataFusion Optimizer Rule on the Apple Silicon GPU

Apache Arrow and Apache DataFusion Now List ArrowMetal: Arrow Compute and a DataFusion Optimizer Rule on the Apple Silicon GPU

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9 min read
Function Calling Gives LLMs Type Safety, Not Correctness

Function Calling Gives LLMs Type Safety, Not Correctness

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4 min read
Polars 2.0 Is Faster. With ArrowMetal on the Apple Silicon GPU, 52 of 107 Queries Go 1.35x to 7.94x Faster Still

Polars 2.0 Is Faster. With ArrowMetal on the Apple Silicon GPU, 52 of 107 Queries Go 1.35x to 7.94x Faster Still

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10 min read
Prompt Injection Isn't a Jailbreak and the Difference Matters

Prompt Injection Isn't a Jailbreak and the Difference Matters

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4 min read
LLM Cascades Violate the Ensemble Theory They're Built On

LLM Cascades Violate the Ensemble Theory They're Built On

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5 min read
Quantization Is a Silent Fine-Tune Breaking Your Edge AI

Quantization Is a Silent Fine-Tune Breaking Your Edge AI

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5 min read
Long-Term Memory for AI Agents Needs a Write Path, Not Just RAG

Long-Term Memory for AI Agents Needs a Write Path, Not Just RAG

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5 min read
LLM Guardrails Are Just Another Model, Not a Safety Boundary

LLM Guardrails Are Just Another Model, Not a Safety Boundary

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5 min read
Model Routing, Not GPUs, Is the Real AI Infrastructure Lever

Model Routing, Not GPUs, Is the Real AI Infrastructure Lever

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5 min read
DataFusion on the Apple Silicon GPU: One Optimizer Rule, the Same SQL, Sorts 6.9x to 28.8x Faster

DataFusion on the Apple Silicon GPU: One Optimizer Rule, the Same SQL, Sorts 6.9x to 28.8x Faster

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9 min read
Multimodal AI Breaks at the Tokenizer, Not the Model

Multimodal AI Breaks at the Tokenizer, Not the Model

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5 min read
AI Coding Assistants Shifted the Bottleneck From Writing to Review

AI Coding Assistants Shifted the Bottleneck From Writing to Review

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5 min read
Context Engineering Needs a Build System, Not a Prompt Folder

Context Engineering Needs a Build System, Not a Prompt Folder

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5 min read
Your Apple Silicon GPU Loses to One CPU Core Until a Million Rows. I Measured 111 Operations, Then Rebuilt ArrowMetal 0.2.0 Around the Answer

Your Apple Silicon GPU Loses to One CPU Core Until a Million Rows. I Measured 111 Operations, Then Rebuilt ArrowMetal 0.2.0 Around the Answer

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10 min read
Distillation Is Quietly Erasing Your LoRA Preference Tuning

Distillation Is Quietly Erasing Your LoRA Preference Tuning

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5 min read
LLM Benchmarks Measure Recall, Not the Reasoning You're Paying For

LLM Benchmarks Measure Recall, Not the Reasoning You're Paying For

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5 min read
sqljev: TypeSafe Jev's jev() for SQL Server, Postgres, Snowflake, BigQuery and DuckDB, on Jev or Open-Weight Laya

sqljev: TypeSafe Jev's jev() for SQL Server, Postgres, Snowflake, BigQuery and DuckDB, on Jev or Open-Weight Laya

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7 min read
RAG Eval Is Broken Because Recall@K Isn't the Metric That Matters

RAG Eval Is Broken Because Recall@K Isn't the Metric That Matters

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5 min read
AI Agents Don't Fail at Reasoning — They Fail at State

AI Agents Don't Fail at Reasoning — They Fail at State

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5 min read
KV-Cache Is the Real Currency of LLM Inference Economics

KV-Cache Is the Real Currency of LLM Inference Economics

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5 min read
Airflow vs Dagster Misses the Point: ML Needs Asset-Aware Orchestration

Airflow vs Dagster Misses the Point: ML Needs Asset-Aware Orchestration

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5 min read
DuckDB on the Apple Silicon GPU: Plain SQL, 19 of 22 TPC-H Queries on the Mac's Own GPU, and a Rule That Says Never Slower

DuckDB on the Apple Silicon GPU: Plain SQL, 19 of 22 TPC-H Queries on the Mac's Own GPU, and a Rule That Says Never Slower

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7 min read
Feature Stores Forgot Their One Job: Point-in-Time Correctness

Feature Stores Forgot Their One Job: Point-in-Time Correctness

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5 min read
Why Machine Unlearning Can't Save You From a Deletion Request

Why Machine Unlearning Can't Save You From a Deletion Request

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5 min read
DeepSeek-V4.1-Flash: The Open-Weight AI Model That Replaced Its Own Flagship — Day 30/30

DeepSeek-V4.1-Flash: The Open-Weight AI Model That Replaced Its Own Flagship — Day 30/30

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6 min read
Olmo 3 32B Think: The Open-Weight AI Model That Shows Its Training Data — Day 29/30

Olmo 3 32B Think: The Open-Weight AI Model That Shows Its Training Data — Day 29/30

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5 min read
GLM-5.2: The Open-Weight AI Model Undercutting Frontier Pricing by 10x — Day 28/30

GLM-5.2: The Open-Weight AI Model Undercutting Frontier Pricing by 10x — Day 28/30

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6 min read
Qwen3.8-2.4T: The 2.4 Trillion Parameter Open-Weight MoE AI Model — Day 27/30

Qwen3.8-2.4T: The 2.4 Trillion Parameter Open-Weight MoE AI Model — Day 27/30

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6 min read
Anthropic's AI Protein Design Run, Number by Number: 354 Binders, 27%, and What It Doesn't Prove

Anthropic's AI Protein Design Run, Number by Number: 354 Binders, 27%, and What It Doesn't Prove

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10 min read
Kimi K3: The Trillion-Parameter Open-Weight AI Model You Rent — Day 26/30

Kimi K3: The Trillion-Parameter Open-Weight AI Model You Rent — Day 26/30

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6 min read
MiniMax M3: The Open-Weight LLM With 1M Context at $0.30 per M Tokens — Day 25/30

MiniMax M3: The Open-Weight LLM With 1M Context at $0.30 per M Tokens — Day 25/30

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6 min read
Llama 4 Scout: The Open-Weight LLM With a 1.3M-Token Context Window — Day 24/30

Llama 4 Scout: The Open-Weight LLM With a 1.3M-Token Context Window — Day 24/30

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6 min read
Qwen3 Coder 30B A3B: The Open-Weight MoE Model for Local Coding Agents — Day 23/30

Qwen3 Coder 30B A3B: The Open-Weight MoE Model for Local Coding Agents — Day 23/30

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6 min read
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