Terminal Sync — 3 AIs in parallel

Ask Claude, Codex (GPT), and Gemini the same prompt at the same time — and compare all three answers in parallel, no tab juggling required. Terminal Sync sends your prompt to all three models at once and shows the responses side by side in a multi-turn chat. Useful when: ✅ You need to decide which model reasons best about a specific problem. ✅ You want to validate one AI's answer against the other two. ✅ You want to try all three without paying anything for the first week. TWO MODES 🎁 Hosted trial (default) — the first 7 days you query directly, free. Up to 50 prompts/day across Claude Sonnet 5 + GPT-4o + Gemini 2.5. No card, no key setup. After day 7 it becomes BYOK forever-free, or you can upgrade to Pro. 🔑 BYOK (forever-free) — paste your 3 API keys (Anthropic + OpenAI + Google) and the extension talks directly to each provider. You pay the provider, no caps, no server in between. FEATURES 💬 Multi-turn chat with per-provider history — each AI remembers its own conversation. 🎯 Per-provider model picker: Claude Sonnet 5 / Haiku 4.5 / Opus 5 · GPT-4o mini / 4o / o1 mini · Gemini 2.5 Flash / Lite / Pro. 💰 Live cost meter in BYOK, or "$0.00 — covered by trial" in hosted. 📋 One-click copy on any response. 🎨 Full markdown rendering: lists, code, tables, links. 💾 Conversation persists locally and restores when you reopen the popup. 🔒 Privacy: in BYOK we never see your traffic. In hosted we see request metadata (prompt count) but NOT prompt or response content. Zero analytics, zero telemetry, zero training on your data. WANT FILES, PERSISTENT MEMORY, AND MAC-TO-MAC SYNC TOO? → Terminal Sync Desktop for Mac, with Windows/Linux coming soon, at https://terminalsync.ai. The extension is the browser flavor; the desktop app is the complete experience with encrypted secrets vault and roaming sessions. HOW TO START 1. Install the extension. 2. Click the icon → type → get 3 parallel answers. Hosted trial is free for the first 7 days. 3. When you want BYOK: Options → BYOK → paste your 3 keys → Test. Privacy policy: https://terminalsync.ai/en/legal/extension-privacy Source code: https://github.com/jmggaravito-sudo/terminalsync-chrome