AI Model Rankings May 2026: Top LLMs Ranked by Coding, Reasoning & Cost

A May 2026 snapshot of the top LLMs ranked on the three axes that matter: SWE-bench coding, GPQA Diamond reasoning, and real price per million tokens.

Codex CLI Multi-Provider Setup via config.toml

Configure Codex CLI model providers, Responses API access, authentication and profile files. Check gateway compatibility before switching models.

Claude's "Go to Sleep" Bug Explained: Why It Happens and How to Keep Coding

Claude has been telling developers to go to bed mid-debug. What Anthropic said about it, why the model does it, and the five-line fix that stops it.

Migrate OpenClaw to Hermes Agent v0.14: Step-by-Step Guide

hermes claw migrate moves your API keys, models, skills, and memory from ~/.openclaw to ~/.hermes in minutes.

Codex CLI on Windows 2026: Native vs WSL2 Install Guide

OpenAI recommends native Windows for Codex CLI, but WSL2 gives you Linux's Landlock sandbox. Both paths, the sandbox differences, and OfoxAI routing.

Hermes Agent v0.14: Self-Improving AI with Skills & Memory

Hermes Agent v0.14 writes reusable skills and persists memory across sessions. Setup, ofox.ai integration in five minutes, and tradeoffs vs Claude Code.

Codex Chrome Extension: Setup, Permissions, 5 Browsers

It now covers Chrome, Edge, Brave, Opera and Vivaldi and installs from the ChatGPT desktop app. Install path, permissions model, and the real limits.

Install Codex CLI on macOS, Windows and Linux

Install Codex CLI via npm, Homebrew, or binary. Covers API key vs ChatGPT auth, config.toml, approval modes, sandbox levels, AGENTS.md, and MCP servers.

GPT-Image-2 Slow & 504 Errors: 5 Root Causes Fixed (2026)

GPT-Image-2 takes 145–280s by design. Most 504s and failures are gateway timeouts, not OpenAI errors.

Qwen 3.6 27B vs Claude Opus 4.6 for Coding: Can a Free Local Model Replace a $15/MTok API?

Qwen 3.6 27B matches Claude Opus 4.6 within 4 points on SWE-bench Verified and runs on a single RTX 4090.