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Claude Mythos Found Real Cryptographic Weaknesses — And AES Is Not One of Them

Anthropic published two cryptanalysis results found by Claude Mythos Preview: a real HAWK key recovery, executed end-to-end, and a faster attack on 7 of AES's 10 rounds that Anthropic itself calls completely impractical. HAWK has since withdrawn from the NIST process. The deeper story is that verification, not discovery, is now the bottleneck.

16 min read

August 1, 2026

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analysis

The Cost-Per-Task Pivot: What OpenAI and Microsoft Both Published in 48 Hours

OpenAI cut GPT-5.6 Luna and Terra on July 30, 2026, one day after publishing that two API settings tripled its ARC-AGI-3 score and Microsoft argued every model should be substitutable. A close reading of what the numbers actually measure.

RAG vs Fine-Tuning vs Prompt Engineering: Which One Do You Actually Need?

RAG, fine-tuning, and prompt engineering solve different problems. Prompt engineering shapes the instructions, RAG supplies external knowledge, and fine-tuning changes behavior. Start with prompting, add RAG for your own data, and fine-tune only when both fall short.

AI Training vs Inference: Where the Money Really Goes

AI has two costs: training a model once, a massive one-time expense, and inference, the recurring cost of answering every request. At scale, inference is roughly 80 to 90 percent of a model's lifetime compute bill. This explainer defines both phases, shows why the training-is-expensive myth breaks at scale, and breaks down what drives inference cost and how to control it.

The AI Glossary: 45+ Terms Everyone Should Know (Plain English)

Tokens, agents, RAG, MCP, quantization — decoded. A plain-English glossary of 45+ AI terms, each defined in one or two clear sentences you can trust.

What Are AI Agents? How They Work (With Business Use Cases)

An AI agent is an AI system that pursues a goal: it plans, uses tools like APIs and a browser, acts, checks the result, and repeats until the goal is met — unlike a chatbot, which answers one prompt and stops. Here is how AI agents work and where they fit in a business.

How Much VRAM Do You Need to Run an LLM? The Full Sizing Table

How much VRAM to run an LLM? Roughly 2 GB per billion parameters in FP16, about 1 GB in 8-bit, and 0.5 to 0.6 GB in 4-bit, plus 15 to 20 percent overhead. This reference table maps sizes from 7B to 405B-plus across FP16, Q8, and Q4 to the exact hardware that runs them.

How Do Large Language Models Actually Work? (Plain English)

A large language model writes text by repeatedly predicting the most likely next word, one token at a time. This plain-English guide explains next-token prediction, tokens, embeddings, the transformer and attention, two-phase training, and why LLMs hallucinate.

What Is MCP (Model Context Protocol)? Explained Simply

MCP (Model Context Protocol) is an open standard — a USB-C port for AI — that lets any model connect to your tools and data through one interface. Created by Anthropic in 2024, now backed by OpenAI and Google.

What Is RAG (Retrieval-Augmented Generation)? A Plain-English Explainer

A plain-English explainer of Retrieval-Augmented Generation (RAG): why it exists, how the retrieve-augment-generate pipeline works, the building blocks, and how it differs from fine-tuning.

Closed vs Open-Weight AI Models: How to Actually Choose (2026)

Closed vs open-weight AI models come down to who holds the weights. This decision grid weighs cost, control and data residency, security, ecosystem, and performance parity, then maps concrete usage profiles to the right choice.

SWE-bench Pro vs SWE-bench Verified: Why These AI Coding Scores Don't Compare

SWE-bench Verified and SWE-bench Pro are two different AI coding benchmarks — Verified is an easier 500-task subset, Pro is a harder, contamination-resistant test. The same model can score 80.6 on Verified and 55.4 on Pro, which is why the two scores cannot be compared.

12 min read

July 4, 2026

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