The median AI agent started at $29 a month in October 2026, and 57% had a free tier.

Method. We checked each agent's pricing on the vendor's own pages between 2 September and 13 October 2026: 149 of the 151 AI agents we list. The entry price is the cheapest paid plan, in US dollars a month. Yearly prices are divided by 12. 85 agents have one. Usage-based, one-time and quoted prices, and prices in other currencies, are left out of the medians. A free trial doesn't count as a free tier. A price change counts only when a later check saw it on the vendor's page. Full method

Free tiers

82 of the 144 AI agents whose pages say either way have a free tier (57%). 41 offer only a free trial or a limited plan, and 21 have neither.

How they charge

How the cheapest paid plan is billed, for all 149 AI agents.

Changes since last month

We found no confirmed price or free-tier changes in the 30 days to 13 October 2026.

Every agent's price

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Prices (CSV)Categories (CSV)Changes (CSV)Markdown

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Method

• Agents. Every AI agent listed on The Agents Index whose pricing we checked in the last 60 days. We keep the vendor's own words as the source of each price.
• Entry price. Where a vendor publishes a monthly and a yearly rate, we use the monthly one. A per-seat plan counts the price of one seat. The 13 agents priced in other currencies are left out of the medians, not converted.
• Medians. The median is the middle price. The middle 50% runs from the 25th to the 75th percentile. A category with fewer than 5 priced agents gets no median. An agent in two categories counts in both.
• Free tier. A plan you can stay on for free. Shares are out of the agents whose pages say either way.
• Pricing model. How the cheapest paid plan is billed: a flat fee, per seat, by usage, once, or through sales. "Free only" means there is no paid plan.
• Changes. A change also doesn't count when it came with a new currency or billing term, changed twice in the month, went back to an earlier value, or fixed a reading less than two weeks old. Those are corrections to our own records.
• Small categories. Categories with fewer than 5 agents count in the totals but aren't shown on their own: Legal agents.

How we check listings: methodology.

Editions

• October 2026: The median AI agent started at $29 a month in October 2026, and 57% had a free tier.