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One price change, two new models, 170+ funding rounds: TANDIU weekly data notes (Oct 19–25, 2026)

One price change, two new models, 170+ funding rounds: TANDIU weekly data notes (Oct 19–25, 2026)

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4 min read
Your Eval Suite Has a Flake Rate: Gating LLM Changes on Paired, Powered Tests

Your Eval Suite Has a Flake Rate: Gating LLM Changes on Paired, Powered Tests

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3 min read
vLLM Speculative Decoding: 1.8x Faster Alone, Slower at 32 Users

vLLM Speculative Decoding: 1.8x Faster Alone, Slower at 32 Users

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7 min read
How to Evaluate a RAG Chatbot Before Your Customers Do: Build a Test Set That Catches Real Failures

How to Evaluate a RAG Chatbot Before Your Customers Do: Build a Test Set That Catches Real Failures

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6 min read
Prompt Caching Cost Is What Decides Your AI Coding Agent Bill

Prompt Caching Cost Is What Decides Your AI Coding Agent Bill

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6 min read
I built Karpathy's LLM Wiki as a product — the hard part was stopping the LLM from writing

I built Karpathy's LLM Wiki as a product — the hard part was stopping the LLM from writing

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7 min read
Open-Weight AI Models You Can Run Yourself: October 2026 Edition

Open-Weight AI Models You Can Run Yourself: October 2026 Edition

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8 min read
If the Model Can Write a Better Sentence, Whose Sentence Is It?

If the Model Can Write a Better Sentence, Whose Sentence Is It?

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4 min read
LiteLLM 1.107.0 was malware. A 5-minute check for AI developers, and the one-line setting that would have skipped it

LiteLLM 1.107.0 was malware. A 5-minute check for AI developers, and the one-line setting that would have skipped it

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5 min read
I Talked to 20 AI Engineers This Month. Here's What They're All Worried About

I Talked to 20 AI Engineers This Month. Here's What They're All Worried About

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4 min read
I Built the Same AI Agent in 4 Frameworks. Here's the Honest Breakdown.

I Built the Same AI Agent in 4 Frameworks. Here's the Honest Breakdown.

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4 min read
Context Assembly Is a Build Step: Versioning the Prompt You Actually Send

Context Assembly Is a Build Step: Versioning the Prompt You Actually Send

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3 min read
Structured outputs that do not break: schemas, Zod and a repair retry

Structured outputs that do not break: schemas, Zod and a repair retry

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8 min read
A governed fine-tune for $0.86: Qwen3-4B on IFC/BIM, with a person approving every step

A governed fine-tune for $0.86: Qwen3-4B on IFC/BIM, with a person approving every step

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4 min read
Evals before prompts: a small eval harness for an LLM feature

Evals before prompts: a small eval harness for an LLM feature

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9 min read
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