AI Evaluation Tools pricing across 5 tracked products: entry-tier median $0, top-tier median $1,000. Cheapest: DeepEval (Confident AI). Most premium: Guardrails AI. Updated April 2026.
AI evaluation tools combine seat-based collaboration pricing with usage metering on LLM-judge calls. Typical range $100-500/user/month for team tiers.
Entry-tier median is $0, top-tier median $1,000. Negotiated enterprise deals typically land 15-40% below list.
| Product | Entry | Median | Top | Unit |
|---|---|---|---|---|
| DeepEval (Confident AI) | $0 | $100 | $1,000 | month |
| Guardrails AI | $0 | $49 | $500 | month |
| Lakera | $0 | $99 | $1,500 | month |
| LangWatch | $0 | $99 | $1,000 | month |
| PromptLayer | $0 | $50 | $299 | month |
Low is the entry-tier price (often a free or starter plan). Median is the middle price across published tiers. High is the top published tier — enterprise contracts with negotiated discounts usually land 15-40% below the published high.
Across 5 tracked products, the entry-tier median is $0 and the top-tier median is $1,000. Individual products vary significantly — see the per-product table above.
DeepEval (Confident AI) has the lowest entry-tier price in our tracked set.
Guardrails AI has the highest top-tier list price among tracked products.
Prices are sourced from vendor pricing pages and automatically re-checked. Any tier marked 'custom' has no public list price; negotiated deals aren't shown here.