Larkgrass

Weekly limits. Pick how big.

On every paid plan, your agents get their own computer to do the work and connect your apps. Bigger plans give your crew more agents, more computer time and more room each week, and Pro and Max add the frontier models.

Free try

$0

No card needed

One free job, then a little free use each month

  • One real job, start to finish
  • Up to 3 agents
  • Lightest models, picked for you
  • No computer for your agents
  • No repeating tasks
  • No model choice
Start free

Starter

a month + tax

$204 + tax billed yearly

Or try your first week: $5 for 7 days, then $20/mo

Base weekly usage

  • 6 agents
  • Computer time: Included*
  • Storage: Included
  • Models included: DeepSeek V4.1 Flash, GLM-5.3 Flash, GLM-5.3
  • Use better models with extra usage
  • Your agents get their own computer to do the work, with a browser window and folder for each
  • Hundreds more models from the catalog
  • Routines, connected apps and Teach a task
Start with Starter

Pro

Recommended
a month + tax

$612 + tax billed yearly

  • 15 agents
  • Computer time: 2× Starter*
  • Storage: 2.5× Starter
  • Models included: DeepSeek V4.1 Flash, GLM-5.3 Flash, GLM-5.3, Claude Sonnet 5.5, GPT-6.1 Sol, Gemini 4 Argon, Claude Opus 5.5
  • Everything in Starter
  • More routines, runs at once and storage
Start with Pro

Max

a month + tax

$2,040 + tax billed yearly

About 11.3x Starter's weekly usage

  • 100 agents
  • Computer time: 6× Starter*
  • Storage: 10× Starter
  • Models included: DeepSeek V4.1 Flash, GLM-5.3 Flash, GLM-5.3, Claude Sonnet 5.5, GPT-6.1 Sol, Gemini 4 Argon, Claude Opus 5.5, Claude Fable 5.1
  • Everything in Pro
  • Fable can use up to half of your week
  • The most routines, runs at once and storage
  • For a crew that takes on your heaviest weeks
Start with Max

Every plan measures usage the same way. Heavier models fill your bar faster on any plan. *Computer time is fair use; see Terms.

Prices in US dollars. Prices exclude tax, added at checkout. Plans renew automatically until you cancel. Cancel any time from your account.

Payments are processed by Dodo Payments, our merchant of record. Your bank statement will show Dodo Payments.

How usage works

You see two bars: AI usage, for Larkgrass's models, and computer time, for every agent. Both fill as your agents work.

It resets every week
Your limit starts fresh every Monday at 00:00 in your own time zone. You get a heads-up at 80%. At 100%, agents finish the step they're on, then wait for the reset. Nothing is charged extra unless you add usage.
A launch bonus to start
When you first subscribe to a yearly plan, you get an extra 25% of one week's usage to use within 14 days. It's used after your normal weekly limit, once per account.
Need more before the reset?
Add usage from $5 to $200, with no fee on top (tax added at checkout). It's used only after your weekly limit, also pays for computer time past your weekly computer time and for better models above your plan, and doesn't reset. Usage is spent only on Larkgrass tasks (AI and computer time), has no cash value, can't be withdrawn, transferred or exchanged, and expires 12 months after purchase. Refunds only as set out in the Refund Policy.
Heavier models fill the bar faster
Each model is Light, Medium, Heavy or Very heavy: how fast it fills your weekly bar. The level is the same on every plan. Pick a heavier model when a task needs it, or add your own API key: AI on your own key doesn't count toward your AI usage; computer time still counts.

Model speeds

  • DeepSeek V4.1 FlashLightEvery plan
  • GLM-5.3 FlashLightEvery plan
  • GLM-5.3MediumEvery plan
  • Claude Sonnet 5.5HeavyPro and up
  • GPT-6.1 SolHeavyPro and up
  • Gemini 4 ArgonHeavyPro and up
  • Claude Opus 5.5Very heavyPro and up
  • Claude Fable 5.1Very heavyMax

Larkgrass is built on top of AI models from many companies, and your agents can also run on hundreds more from the catalog. Each one shows Light, Medium, Heavy or Very heavy in the app.

Questions

Anything else? Write to billing@larkgrass.com about payments, or hello@larkgrass.com.

What happens when I reach my limit?

Your agents finish what they're doing, then pause. They pick up exactly where they left off when the limit resets on Monday. New messages wait too. We never charge extra unless you add usage.

What's the difference between Pro, Pro+ and Pro++?

The weekly usage (about 3.4x, 4.4x or 5.5x Starter's), the agents (15, 25 or 40) and the computer time (2×, 3× or 4× Starter's). The models and features are the same.

Why don't you show tokens or credits?

Because they're hard to reason about. One bar and a reset day tell you everything you need.

What does "Heavy" mean?

Heavier models cost more to run, so they fill your weekly bar faster. A Heavy model fills it about 7 to 18 times faster than a Light one. The real amount depends on how long the task runs.

Can I use my own model?

Yes, on any plan. Add your own API key in Settings → Models. Its AI use doesn't count toward your AI usage; computer time still counts.

Can I switch plans?

Any time, including between Pro sizes. Upgrades apply right away; downgrades apply at the end of your billing period.

What is the launch bonus?

When you first subscribe to a yearly plan, you get an extra 25% of one week's usage to use in your first 14 days. It's used after your normal weekly limit, once per account, and it ends if the payment is refunded.

Is there a discount for paying yearly?

Yes, 15%: $204 a year + tax instead of $240 + tax on Starter.

Start with Starter, grow when you need to.

Change plans any time from your account. Upgrades apply right away.