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

Aider vs Amazon Kiro

Side-by-side free tier comparison. Catalogue dates here run to 2026-09-22.

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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180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn and not restored, a product retired — does not lapse with time.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

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 2026-06-03 reduced
CategoryAI Coding
TierFree
Verified2026-09-22
Last read2026-09-22
Changes2 recorded
AI coding tool by AWS, with an IDE, a CLI and a web interface. Prompts run by default on Auto, "an agent that uses a mix of different frontier models", and users can pick Claude, GPT or open-weight models. 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

new tier effective 2026-07-10 low impact
Kiro added a Pro Max plan at $100 per user a month with 5,000 credits, between Pro+ and Power. It first appears on kiro.dev/pricing between the 2026-06-03 and 2026-07-10 captures. Source ↗
reduced effective 2026-06-03 medium impact
Kiro stopped giving new users 500 bonus credits on sign-up, usable within 30 days, and now credits $20 toward the first paid plan instead. The change falls between the 2026-05-02 and 2026-06-03 captures of kiro.dev/pricing. 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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