This section provides answers to billing, subscriptions, and payment questions for Kiro.
Which countries are supported for paid plans?
Australia, Brazil, Canada, China, France, Germany, Hong Kong, India, Indonesia, Israel, Italy, Japan, Korea, Mexico, Netherlands, Poland, Romania, Singapore, Spain, Thailand, United Kingdom, United States of America, and Vietnam are the supported countries.
What paid plan should I choose if I'm not sure about my future usage?
Many customers are still exploring agentic development, and we expect that learning curve to continue beyond the first month. We don’t want you to have to predict your future usage or “time” upgrades to get a fair deal—we want you focused on building. A good path is to start on Pro and, if needed, enable overage so you can continue working without friction. If you later decide you need more, upgrade when you’re ready. In your first paid month we’ll discount for what you already paid and charge a single prorated amount for the higher plan back to the day you first became paid, so you won’t pay more than if you had upgraded earlier. For example, in a 30-day month if you start Pro on day 15 ($10 for the rest of the month) and later switch to Pro+ the same month, we discount for the $10 and charge $20—net $10—so you finish the month on Pro+ with one prorated allowance. From Month 2 onward, upgrades charge the full price difference and we re-rate the whole month under the higher plan’s limits, which also prevents overpaying.
What paid plan should I choose once my Kiro usage is stable?
Our intent with Kiro’s pricing is to let most developers work comfortably without micromanaging usage or worrying about surprises. Once your usage settles into a pattern, choose the smallest subscription plan that reliably covers a typical month, with a little headroom. That reflects our goal of making your default experience predictable: if you prefer a fixed bill, leave overage off and your usage will pause at the cap; if you prefer continuity during occasional spikes, keep overage on. If those spikes become frequent, or your month-end overage spend starts to approach the price difference to the next tier, moving up will usually lower your total cost while keeping things simple.
What happens when I reach the monthly limit of my plan?
If you hit the limit for one type of request, requests of that type pause until your limits reset at the start of the next month. Other request types remain available if they're still under their limits.
The Kiro Free tier has fixed monthly limits and does not allow overage. If you hit a Free limit, you can upgrade to a paid plan for immediate additional capacity.
On paid plans, you can enable overage to continue working uninterrupted beyond your included limits. You can also upgrade to a higher plan at any time, and the higher usage limits immediately apply.
I'm near month-end. Should I upgrade now or rely on overage?
If you're on a paid plan and only have a few days left, turning on overage is often the simplest way to finish the month unless your month-to-date overage cost is approaching the price difference to the next tier. When that "breakeven" point is reached, upgrading will usually lower your total bill and raise your limits immediately. In your first paid month, if you do upgrade late, we apply a discount for what you've already paid and charge a single prorated amount for the higher plan back to the day you first became paid, so you don't overpay for waiting a bit. From Month 2 onward, mid-month upgrades charge the full price difference and we re-rate the whole month under the higher plan.
What happens to my bonus Spec requests if I upgrade early?
If you are within the two-week trial period for the bonus Spec requests, those Spec requests will carry over for the remainder of the two-week trial period, independent of the plan you upgrade to.
How does proration work during the initial month that I upgrade from the Free Trial or Kiro Free tier to paying?
During the month that you first upgrade to a paid plan, both limits and plan charges are pro-rated by days remaining in the month, and usage from earlier in the month while on Free does not count against the limits of your new paid plan. For example, in a 30-day month, if you upgrade to Pro ($20) with 10 days left (i.e., on day 21), you pay $6.67 (10/30 of $20) and receive prorated limits for the remaining days: 75 vibe requests (10/30 of 225) and 42 spec requests (10/30 of 125, rounded up). Informally, because you’re on Pro for one-third of the month, you pay one-third of the price and get one-third of the limits.
If you later upgrade to Pro+ ($40) in that same first paid month, we discount the $6.67 you already paid for Pro and charge $13.33 (10⁄30 of $40), so your net extra payment is $6.66 at the time of upgrade. On your invoice, this appears as a discount line for the earlier Pro charge and a prorated charge line for Pro+. You finish the month on Pro+ with one prorated allowance for the remaining 10 days: 150 vibe requests (10/30 of 450) and 84 spec requests (10/30 of 250, rounded up). Any usage now under these higher prorated caps (including any overage while on Pro) is included; only usage above them is billed as overage at month-end.
What happens to my existing overage if I upgrade during the middle of the month?
Our intent is that you shouldn’t have to “time” an upgrade or pay twice for the same usage. When you upgrade to a higher subscription plan mid-month, we re-evaluate your month-to-date usage under the higher plan, so you get the benefit of its larger limits.
When does Kiro bill me?
Kiro bills on a calendar month. Your billing month starts at 12:00 a.m. (UTC) on the first day of the month and ends at 11:59 p.m. (UTC) on the last day. The exact timing of your monthly charge will depend on your local timezone. If you upgrade mid-month, we will bill you immediately for the cost of the new plan discounted by the cost of the prior plan. Overage is included as separate line items on your month’s bill.
What counts as one Spec request?
One Spec request usually equals executing a single task from your spec. If you run several tasks at once, each counts individually. Subtasks are counted separately. The “one task ~ one Spec” rule is a good baseline, though complex tasks can span multiple Specs if they require significantly more processing.
Why might a single action span more than one Vibe or Spec request?
Some actions require much more context or generate more output than average, such as working across a large codebase or executing a highly complex build. When that happens, the total token usage can exceed the limit for a single request, and Kiro will count it as multiple Vibe or Spec requests. You’ll see the count right after the interaction finishes.
How does Kiro help optimize my costs?
Kiro is engineered to minimize redundant LLM work. We reuse context where possible and apply provider‑level efficiencies, such as token‑efficient tool use and prompt caching when available, to cut underlying token spend without adding friction to your workflow. You pay by request, not by token, and we pass efficiency gains through Kiro's pricing plan design rather than asking you to micromanage prompts.
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