Compare Aider and Amazon Kiro free tiers side by side. Pricing, limits, change history, and risk assessment for developers.

AgentDeals › Comparisons › Aider vs Amazon Kiro

Aider vs Amazon Kiro

Side-by-side free tier comparison. Catalogue dates here run to 2026-08-18.

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Verdict

Amazon Kiro offers a free tier ("Free"). We are not publishing a free-tier verdict for Aider. The page we cite for Aider states no amount, tier or rate we can read when we last looked, on 2026-09-02. We are not comparing the two pricing histories.

A verdict here is not a fixed property of the vendor. A one-off pricing event demotes a vendor while its recorded date falls in the last 180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn, a product retired — does not lapse with time. A badge carrying a date states the record it rests on; a badge with no date rests on no record in force.

Aider profile → Amazon Kiro profile →

Aider

Risk
CategoryAI Coding
TierOpen Source
Verified2026-07-27
Last read2026-09-02
Changes0 recorded
Open-source AI pair programming CLI tool. Fully free — users provide their own LLM API keys (supports GPT-4o, Claude, Gemini, DeepSeek, Ollama local models). Git-aware editing, multi-file changes, voice coding, in-chat image support. Apache 2.0 licensed.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Amazon Kiro

Riskcaution discovered 2026-09-03 restructured
CategoryAI Coding
TierFree
Verified2026-08-18
Last read2026-09-03
Changes4 recorded
Claude-powered AI IDE by Amazon (GA launch) — KIRO FREE $0 per month 50 credits. KIRO PRO $20 per user / month 1,000 credits. KIRO PRO+ $40 per user / month 2,000 credits. KIRO PRO MAX $100 per user / month 5,000 credits. KIRO POWER $200 per user / month 10,000 credits. Add-on credits are $0.04/credit. $20 credit towards first paid plan upgrade.

Pricing Change History

Aider

No recorded pricing changes for Aider.

Amazon Kiro

restructured discovered 2026-09-03 · effective date unknown medium impact
The tier names have changed. 'Pro+' is now 'Pro Max'. There is a new 'Pro Max' tier at $100/month for 5,000 credits. The sign-up bonus is now $20 towards a paid plan, instead of 500 bonus credits. Add-on credits are available for all paid tiers and cost $0.04/credit, with packs ranging from $5 to $100. Unused add-on credits roll over for 12 months. Source ↗
restructured effective 2026-04-13 medium impact
Kiro pricing model clarified: uses credits (not interactions). Credits metered to 0.01 increments, model-dependent rates (Sonnet 4 costs 1.3x more than Auto). $0.04/credit overage (disabled by default). 500 bonus credits for new users (30 days). Enterprise tier with SAML/SCIM SSO. GovCloud ~20% premium, no free tier in GovCloud. Source ↗
new effective 2026-04-09 high impact
Amazon Kiro launched GA with a free tier of 50 credits/month. Claude-powered IDE focused on spec-driven development. Pro $20/mo (1,000 credits), Pro+ $40/mo (2,000), Power $200/mo (10,000). Credits metered to 0.01 increments, model-dependent rates. $0.04 overage per credit. Enterprise tier available. Source ↗
new effective 2026-04-07 medium impact
Amazon Kiro AI coding assistant launched GA with tiered credit-based pricing: Free tier (50 credits/month), Pro ($20/month, 1,000 credits), Pro+ ($40/month, 2,000 credits). Credits metered to 0.01 increments, model-dependent rates. Source ↗

Watch Both Vendors for Pricing Changes

We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.

curl https://agentdeals.dev/api/changes?vendor=Aider curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=Aider curl https://agentdeals.dev/api/changes?vendor=Amazon%20Kiro curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=Amazon%20Kiro

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