Key findings
- Pro buys 1,000 credits for US$20 and Power buys 10,000 for US$200. Higher tiers buy volume at the same rate.
- Credits past the plan cost US$0.04 each, as add-on packs for individual subscribers or month-end overages for teams. At 3,000 credits a month, Pro plus overages costs US$100 and Pro+ costs US$80.
- A task worth 10 credits on Auto costs 20 on Opus 5.5, 13 on Sonnet 5.5, 0.6 on Haiku 5.5 for requests up to 100K tokens, and 0.5 on Qwen3 Coder Next.
- Reported spend runs from a Pro subscriber who cannot use the month's credits to an engineer who spent about 200 euros in a weekend. A spec run that produced no usable code cost one engineer 200+ credits.
The model an engineer picks moves the cost of a Kiro seat more than the tier does. Every paid tier prices plan credits at US$0.02, credits past the plan cost twice that, and the same task costs 40 times more on Opus 5.5 than on Qwen3 Coder Next. Move an engineer who runs past the plan every month up a tier. Figures come from Kiro's pricing, models and billing pages and the spend engineers report in public.
The tiers
Free includes 50 monthly credits for open-weight models and Claude Sonnet 4.5, and Free users cannot buy more. Paid tiers add premium models, Kiro Web, cloud sessions, and API keys for the headless CLI. Plan credits expire at the end of each month. Add-on credits last 12 months.
Teams subscribe each user through the AWS console and pay on their AWS bill. AWS GovCloud (US) charges about 20% more for each tier and has no Free plan.
| Tier | Price | Credits | Price per plan credit | Monthly price |
|---|---|---|---|---|
| Pro | US$20 | 1,000 | US$0.02 | |
| Pro+ | US$40 | 2,000 | US$0.02 | |
| Pro Max | US$100 | 5,000 | US$0.02 | |
| Power | US$200 | 10,000 | US$0.02 |
Kiro pricing page, checked Oct 12, 2026; price per credit calculated by GILD
Past the plan
Individual subscribers buy add-on packs from US$5 for 125 credits up to US$100, billed at purchase. Teams pay US$0.04 per overage credit at month end, once an admin enables overages. Since July 2, 2026, admins can cap overages per account through AWS Service Quotas.
GILD's arithmetic for an engineer using 3,000 credits a month: Pro costs US$20 plus 2,000 extra credits at that overage rate, or US$100. Pro+ costs US$40 plus 1,000 extra credits, or US$80. When an admin upgrades a team member mid-month, Kiro recalculates the whole month under the new tier.
What drives usage
Kiro meters work to 0.01 credit. A simple prompt can cost less than one credit, and a spec task costs more. Hooks and spec refinement spend credits too. Auto routes tasks across models at the base 1.0 rate.
GPT-5.6 Sol carries a 4.4x multiplier, Terra 2.2x and Luna 0.6x. Requests above 272,000 tokens double those rates. Two models with the same multiplier can still cost different amounts per task, because they use different numbers of tokens and reason to different depths.
What engineers report
A manager migrated Terraform configuration across 30+ repositories for about 80 credits, or 8% of a Pro month. Another engineer spent 200+ credits over 8 hours on a spec run that produced no useful code. An engineer who spent about 200 euros in one December weekend judged it worthwhile. A US$20 subscriber struggles to use 1,000 credits a month. One company enables overages for everyone and adjusts tiers to usage.
Methodology
Prices, credits, multipliers, and billing rules come from Kiro's pricing page, FAQ, models page, and billing documentation, checked on October 12, 2026. GILD calculated the price per credit and the 3,000-credit example from those list prices, in US dollars before tax. Engineers' spend figures appear as each author reported them, in the author's currency.
Products in this piece
Sources
- Official documentation
- 9
- Public source
- 5
- Kiro pricing
- Kiro FAQs
- Kiro docs: Models
- Kiro docs: Usage beyond plan limits
- Kiro docs: Usage notifications
- Kiro docs: Enterprise billing
- Kiro docs: Manage subscriptions
- Kiro blog: Set a cap on overage spend, or pre-pay for it (Jul 2, 2026)
- Kiro docs: Enterprise governance
- Davide de Paolis: Kiro showcase: Automating Changes Across Several Repos with Spec-Driven Development and Custom Sub-Agents (Apr 7, 2026)
- Hacker News comment by thegagne on 8 hours and 200+ credits of spec work (Jan 8, 2026)
- Hacker News comment by astqs on a weekend of Kiro usage (Jun 13, 2026)
- Hacker News comment by Miner49er on a 1,000-credit plan (May 16, 2026)
- Hacker News comment by forgotaccount3 on company-wide overages and tier shifts (May 28, 2026)