Best AI LLM Evaluation Tools in 2026
Updated
30ranked
4free plans on this page
9 Oct 2026last checked
Input list AI LLM Evaluation Tools 5 channels on this page · 7 of 40 spec lines stated by the makers
Ch Tool Free planPaid fromEvaluation methodsModel supportSafety evaluationsDeploymentPrompt versioningAPI access Spec sheet Score
26 LM Evaluation Harness Free planPaid fromEvaluation methodsModel supportSafety evaluationsDeploymentself-hostedPrompt versioningAPI access 1/8spec lines stated 6.6
27 Ragas Free planYesPaid fromEvaluation methodsModel supportSafety evaluationsDeploymentself-hostedPrompt versioningYesAPI access 3/8spec lines stated 6.6
28 TruLens Free planPaid fromEvaluation methodsModel supportSafety evaluationsDeploymentself-hostedPrompt versioningAPI access 1/8spec lines stated 6.6
29 Inspect AI Free planPaid fromEvaluation methodsModel supportSafety evaluationsDeploymentself-hostedPrompt versioningAPI access 1/8spec lines stated 6.5
30 RAGChecker Free planPaid fromEvaluation methodsModel supportSafety evaluationsDeploymentself-hostedPrompt versioningAPI access 1/8spec lines stated 6.5
Compare all 5 in a table
| # | Tool | Score | Free plan | From | Free plan | Paid from | Evaluation methods | Model support |
|---|---|---|---|---|---|---|---|---|
| 26 | LM Evaluation Harness | 6.6 | Free plan | Free | ||||
| 27 | Ragas | 6.6 | Yes | |||||
| 28 | TruLens | 6.6 | Free plan | Free | ||||
| 29 | Inspect AI | 6.5 | Free plan | Free | ||||
| 30 | RAGChecker | 6.5 | Free plan | Free |