Meet Deliberation: 400+ models is easy, knowing which ones earn a place is hard.

A follow-up: how a three-model consensus tool grew into a configurable, measurable panel - and why I now make every model prove it pays for its slot.

It is open source and ready to use today: github.com/antonbabenko/deliberation. If you only do one thing, star the repo and install it in your own agent - it takes about two minutes, and the install section below has the exact command for Claude Code, Codex, Cursor, Kiro, and OpenCode.

Here is the part that surprises people: you are probably already paying to access a few models. A ChatGPT subscription includes Codex which allows you to use models like gpt-5.5 and gpt-5.3-codex from Codex CLI. A Claude subscription includes Claude Code. So you can wire GPT and Claude to review each other right now, at no extra cost, and add Gemini, Grok, or any OpenRouter model when you want a third opinion.

A few weeks ago I wrote that one model is a guess and three that agree is a plan. I still believe it. But it skipped the next problem, the one I hit the moment the trick worked: once you can ask three models, you can ask thirty seven. And more voices is not the same as more signal. A slow model that always agrees with a faster one is not a second opinion. It is a bill.