Tag Archives: codex

Claude vs ChatGPT vs Gemini for Coding: Testing Results

TL;DR: I ran the same 5 coding tasks through Claude Opus 4.6, OpenAI Codex CLI (gpt-5.3-codex), Google Gemini 2.5 Flash (sorry I did not have easy access to the newer models, but Gemma 4 was tested!), and two open-source models I ran locally: Gemma 4 31B and Qwen 3.5 35B. Claude’s code was the most production ready. Codex and Qwen tied for best code reviewer. Gemini was the cheapest. The open-source models scored A-, closing in on the paid tier.

Codex CLI + Claude Code: MCP Is 4x Faster Than the Command Line

TL;DR: OpenAI’s Codex CLI works best with Claude Code when you invoke it through MCP, not the command line. MCP calls return in about 3 seconds versus 13+ seconds for CLI on my dev environment, it avoids sandbox issues entirely, and keep everything inside your conversation. Here’s briefly how I set it up, tested various invocation methods, and landed on an optimized dual-AI workflow that works for my coding and research tasks. Why Codex When Claude Code Already Works? Claude

Claude Session Handoffs: How to Keep Context Across Conversations

TL;DR: Even with memory and context compaction, AI assistants still lose the detailed state of your project between sessions. A simple two-file system plus a handoff prompt takes seconds at the end of a session and saves minutes of re-explanation at the start of the next one. This works with Claude, ChatGPT, Gemini, Copilot, or any AI assistant. Don’t want to read the whole post? Copy this one line. Paste it at the end of any AI session. That’s it: