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What new AI models and tools can do, what they cost, how they compare, and how to run them yourself.

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A stack of interlocking geometric verification gates through which a code shape must pass and seat perfectly, illustrating a machine-checked formal proof in Lean 4.

What Is an AI Formal Proof in Lean 4?

An AI formal proof in Lean 4 is a machine-checked guarantee, not a guess. Here's what that means, what AI can prove today, and what it can't.

AI formal proofLean 4formal verification AI code
A balanced-scale composition comparing a compact local LLM inference stack against a taller networked API server rack, joined by a level beam with a central pivot point.

Run Local LLM vs OpenAI API Cost: The 2026 Break-Even Math

Extreme quantization lowered the cost threshold for self-hosting. Here's exactly where local LLMs beat the OpenAI API, by token volume, with sources.

run local LLM vs OpenAI API costlocal LLM cost comparisonOpenAI API pricing 2026
An architectural diagram comparing a lattice of model-parameter blocks and a stacked column of GPU units against a single slender API endpoint node, illustrating the infrastructure cost of self-hosting an open-weight AI model versus calling a hosted API.

Open Source AI vs API: What Self-Hosting Actually Costs

DeepSeek beats GPT-6 Astra 35x to 150x per token, but renting GPUs to self-host isn't automatically cheaper. Here's the real break-even number.

cost of open source AI vs APIDeepSeek V4.1 Flash pricingGPT-6 Astra API cost
Cutaway diagram of an automated code-scanning and review pipeline with inspection chambers, a gated checkpoint, and a manual review platform.

The AI Agent Code Security Workflow You Need Before You Ship

How to build a mandatory security scanning gate into AI coding agent workflows, with SAST, SCA, human review, and logging for agents like GPT-6 Astra.

AI agent code security workflowsecuring AI generated codeagentic coding security
A single dense processing block balanced against a spreading grid of smaller identical modules, illustrating the tradeoff between owning fixed GPU capacity and scaling cloud compute on demand.

Buy GPUs or Rent Cloud AI? The Real Break-Even Math

Is it cheaper to buy GPUs or rent cloud AI for internal tools? The break-even is lower than you think. Here's the real math and a decision framework.

buy vs rent GPUcloud GPU coston-prem GPU vs cloud
A single self-hosting hardware appliance with one accent-colored port serves as the convergence point for several identical blank panels representing replaced cloud services.

Easy Self-Hosting Alternatives to Big Tech SaaS in 2026

Coolify, Umbrel, and other turn-key platforms make self-hosting practical. What's driving the shift, what you can replace today, and the real costs.

self-hosting alternativesself-hosted SaaS replacementsCoolify
Diagram of a persistent memory store feeding continuity into a chain of otherwise resetting AI agent session modules.

What Is AI Persistent Memory?

AI persistent memory is durable, external storage for facts and decisions outside the context window. Here's how it works and why internal tools need it.

AI persistent memoryAI agent memorycontext window
A small blank card sits at the boundary of a larger open mechanical housing, its edge highlighted to show how a compact instruction file connects into a larger system's internal components.

How to Secure AI Agents and Skills Files

SKILL.md files carry full agent privileges and most go unreviewed. Here's the step-by-step framework to inventory, scan, and govern them like production code.

how to secure ai agentsAI skills files securitySKILL.md security
A single folder opens and feeds cards into a central AI agent module while many identical closed folders remain dormant around it, illustrating an on-demand skills file.

What Are AI Agent Skills Files (SKILL.md)?

SKILL.md skills files are plain-text onboarding guides for AI agents. Here's how progressive disclosure works, why sprawl and security risks are real, and how skills pair with MCP.

AI agent skills filesSKILL.mdagent skills standard