Mysti – Claude, Codex, and Gemini debate your code, then synthesize
Hey HN! I'm Baha, creator of Mysti. The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion. The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your request, debate approaches, then synthesize the best solution. Your prompt → Agent 1 analyzes → Agent 2 analyzes → Discussion → Synthesized solution Why this matters: each model has different training and blind spots. Two perspectives catch edge cases one would miss. It's like pair…
Mysti – Claude, Codex, and Gemini debate your code, then synthesize launched on December 23, 2025 with 216 votes, #120 of 11,628 launches that month and more than 95% of that year's launches.
In plain words
Mysti is a code collaboration tool that lets developers pair two AI agents—Claude, Codex, or Gemini—to analyze and debate technical problems together. Users input a coding question or architecture decision, both agents analyze it independently, discuss their approaches, then produce a synthesized solution. It integrates with existing subscriptions to these services, offers 16 specialized personas like Architect or Security Expert, and includes permission controls for how much autonomy each agent has. The tool is designed for developers who want multiple expert perspectives on complex technical decisions to catch edge cases a single AI might miss.
written from the facts on this page · September 2026
From the sources
AI coding dream team of agents for VS Code. Claude Code + openai Codex collaborate in brainstorm mode, debate solutions, and synthesize the best approach for your code. - DeepMyst/Mysti
In the maker’s words, at launch
Hey HN! I'm Baha, creator of Mysti. The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion. The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your…
Does a similar job
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Parallel CodeMar 2026 · parallelcode.app · ▲159I kept running into a structural problem with AI coding tools. You try one agent. It makes changes. You try another. Now you're manually diffing branches and cleaning up experimental commits. The tools are powerful, but the workflow isn’t designed for comparison. So I built Parallel Code. It runs Claude Code, Codex, and Gemini CLI natively (no API wrapper, no feature abstraction), but isolates each agent in: its own terminal its own Git worktree its own feature branch The workflow becomes: Spawn N worktrees Assign one AI agent per worktree Let them implement independently Compare diffs Merge…
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I got tired of switching AI tools, so I built an IDE with 11 of themDec 2025 · hivetechs.io · ▲20Each AI has strengths - Claude reasons well, Gemini handles long context, Codex integrates with GitHub. But switching between them means losing context. Built HiveTechs: one workspace where Claude Code, Gemini CLI, Codex, DROID, and 7 others run in integrated terminals with shared memory. Also added consensus validation - 3 AIs analyze independently, 4th synthesizes. Real IDE with Monaco editor, Git, PTY terminals. Not a wrapper. Looking for feedback: hivetechs.io
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