Five AI agents argue over your week so you don't have to.
Timebox turns "I have four deadlines and no idea where to start" into a realistic weekly schedule. A team of specialist AI agents drafts it, critiques it, and votes on it, then you export it to your calendar in one click.
No account. No subscription. Bring your own OpenRouter key, there's a free model built in.
Your week
Quorum met · 5/5 agents · revised over 3 rounds · $0.004
What is Timebox?
You describe your week in plain language: tasks, deadlines, when you're free, how you're feeling. Timebox's Interpreter agent extracts the structure, five specialist agents each weigh in from their own angle, and a Planner-Arbiter builds a calendar they can all live with. You get a week grid you can inspect block by block, plus a one-click export to Google or Apple Calendar. Everything runs on your own machine.
How it works
Describe your week
Type it like you'd tell a friend: "Two essays due Friday, exam Monday, free after 6pm most days, please don't schedule me past midnight." No forms, no rigid fields.
The agents negotiate
An Interpreter pulls out your tasks and constraints. Five specialists, Deadline, Grade, Effort, Wellbeing, Risk, critique each draft. The Planner revises until they reach quorum or hit your iteration limit. You watch it happen live.
Get your calendar
Review the week grid, click any block to see why it's there, then export to .ics for Google or Apple Calendar. Plans auto-save locally so you can reload or tweak later.
Built around disagreement, not a black box
A team of agents, not one opinion
Five specialist agents each protect one thing: deadlines, grades, realistic effort, your wellbeing, and hidden risk. They draft, critique, and vote in parallel, and their views are kept separate, so you see the actual trade-offs instead of one averaged guess. Any agent can block a plan it considers unsafe.
You set the rules of the debate
Control how strict the consensus is. Set the quorum (how many of the five must approve, 1 to 5) and the max iterations (how many revision rounds before it settles). Want a fast rough draft? Lower both. Want a plan all five agents defend? Crank it up.
Straight into your calendar
Export any plan to a standard .ics file that imports cleanly into Google Calendar, Apple Calendar, or Outlook. Or export the full JSON audit trail, every agent view, critique, and revision, if you want to see the reasoning. Drag-and-drop import brings plans back in.
A real benchmark harness · for developers
Timebox ships with the evaluation rig it was built on. Run a model × quorum × iteration matrix, get a pre-flight cost estimate, set a hard budget cap in dollars, and compare models on a cost-vs-quality chart. An LLM judge plus a deterministic mistake scorer (deadline violations, availability overruns, late-night work) tells you which model actually plans best, not just which sounds best.
Free and open source. The way it should be.
The Timebox desktop app is MIT licensed and free forever. You bring your own OpenRouter API key, so you only ever pay the model provider directly, never us. There's a free model built in if you just want to try it.
Desktop
- ✓ All five agents
- ✓ Quorum & iteration controls
- ✓
.ics+ JSON export - ✓ Benchmark harness
- ✓ Plans stored locally, fully private
- ✓ MIT licensed, fork it, change it, ship it
Requires your own OpenRouter key (free model included).
DownloadWeb Free
Coming soon- No install, no API key
- 3 plans / month
- Runs in your browser
Web Pro
Planned- Everything in Web Free, plus:
- Unlimited plans
- Google Calendar two-way sync
- Plan history across devices
- Priority models
The hosted Web tiers don't exist yet. They're on the roadmap if there's demand. The desktop app is the real product today, it's free, and it always will be.
Questions
Do I need an API key? +
For the desktop app, yes, an OpenRouter key. It takes a minute to create, and Timebox includes a free default model so you can plan at zero cost. You enter the key once in Settings; it stays on your machine. The planned hosted version won't need a key.
Which models can I use? +
Any chat model on OpenRouter. Out of the box you can pick from a free Nemotron model plus paid options like Gemini Flash Lite, DeepSeek, GPT-5 Nano, and MiniMax, each shown with its per-token price so you know the cost before you run. In our own benchmarks, Gemini 2.5 Flash Lite gave the best quality-per-cent.
Is my data private? +
Yes. The desktop app keeps everything, your plans, settings, and key, in your own OS user folder. Nothing is sent anywhere except the model calls you trigger, straight to OpenRouter. There's no Timebox server, no telemetry, no account.
Is it really free? +
The app is free and MIT licensed. The only thing you might pay for is the model usage itself, billed by OpenRouter at their rates, and even that can be €0 with the built-in free model. We don't take a cut.
Why multiple agents instead of just asking ChatGPT? +
Because one model asked to "make a schedule" hides its trade-offs. Timebox forces five agents to defend deadlines, grades, effort, wellbeing, and risk separately, then reach consensus. You see why a block is where it is, and any agent can veto an unrealistic plan.
What do I need to run it? +
A Windows, macOS, or Linux machine. Download the build for your OS from GitHub Releases, portable .exe on Windows, .dmg on macOS, AppImage on Linux. No installer ceremony.
Plan your week in the time it takes to describe it.
Free, open source, runs on your machine. See what five agents come up with.