Best AI Agent Evaluation Tools in 2026
Updated
In short: Noveum is ranked #1 of 29 as of 4 October 2026, ahead of W&B Weave and Opik. The best-ranked option with a free plan is W&B Weave. The lowest first paid tier on this page is Amazon Bedrock Data Automation at $0.01/mo.
Evaluating AI agents means checking how they perform, how their behavior is tracked, and whether important risks are covered. Compare evaluation methods, tool-call checks, safety evaluations, and trace ingestion; SDK language support can also affect how an evaluation tool fits your setup. Dataset limits and regression runs offer further points to weigh, alongside free-plan availability and paid-from pricing. Noveum, W&B Weave, and Opik are among the entries to explore, as are Google Cloud Agent Evaluation and Maxim AI. Use the listed criteria to focus on the checks and workflow requirements that matter to you.
29 AI agent evaluation tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
AI Agent Evaluation Tools, ranked on how quickly a newcomer can get going. 20 of the 25 on this page can be tried for free.
- 1 NoveumPaid from $69/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 2 W&B WeavePaid from $60/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 3 OpikPaid from $19/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 4 Google Cloud Agent Evaluation
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 5 Maxim AIPaid from $29/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 6 Future AGI AI Evaluation SDKPaid from $250/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 7 DeepEvalFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 8 PromptfooFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 9 ArklexFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 10 Strands EvalsFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 11 AgentClashPaid from $49/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 12 GalileoPaid from $100/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 13 GiskardFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 14 TangleFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 15 BraintrustPaid from $249/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 16 MLflow GenAI EvaluationFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 17 Parea AIPaid from $150/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 18 BenchboardPaid from $39/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 19 Amazon Bedrock Data AutomationPaid from $0.01/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 20 VRUNAI
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 21 LangSmithPaid from $39/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 LangWatchPaid from €29/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 OpenAgent Eval
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 24 Exgentic
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 25 HoneyHive
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Evaluation methods | Tool-call checks |
|---|---|---|---|---|---|---|---|---|
| 1 | Noveum | 7.8 | Free plan | $69/mo | Yes | 69 /mo | hybrid | Yes |
| 2 | W&B Weave | 7.8 | Free plan | $60/mo | Yes | 60 /mo | — | — |
| 3 | Opik | 7.7 | Free plan | $19/mo | Yes | 19 /mo | — | — |
| 4 | Google Cloud Agent Evaluation | 7.6 | No | — | — | — | hybrid | Yes |
| 5 | Maxim AI | 7.5 | Free plan | $29/mo | Yes | — | — | — |
| 6 | Future AGI AI Evaluation SDK | 7.4 | Free plan | $250/mo | Yes | 0 /mo | hybrid | Yes |
| 7 | DeepEval | 7.2 | Free plan | Free | Yes | — | model | Yes |
| 8 | Promptfoo | 7.2 | Free plan | Free | Yes | — | — | — |
| 9 | Arklex | 7.1 | Free plan | Free | — | — | model | Yes |
| 10 | Strands Evals | 7.1 | Free plan | Free | — | — | hybrid | Yes |
| 11 | AgentClash | 7.0 | Free plan | $49/mo | Yes | 39 /mo | hybrid | Yes |
| 12 | Galileo | 7.0 | Free plan | $100/mo | Yes | 100 /mo | — | — |
| 13 | Giskard | 7.0 | Free plan | Free | Yes | — | — | — |
| 14 | Tangle | 7.0 | Free plan | Free | Yes | 29 /mo | — | Yes |
| 15 | Braintrust | 6.9 | Free plan | $249/mo | Yes | 249 /mo | — | — |
| 16 | MLflow GenAI Evaluation | 6.9 | Free plan | Free | Yes | — | hybrid | Yes |
| 17 | Parea AI | 6.9 | Free plan | $150/mo | Yes | — | — | — |
| 18 | Benchboard | 6.6 | No | $39/mo | No | — | model | Yes |
| 19 | Amazon Bedrock Data Automation | 6.0 | No | $0.01/mo | — | — | — | — |
| 20 | VRUNAI | 5.7 | No | — | Yes | — | code | Yes |
| 21 | LangSmith | 5.6 | Free plan | $39/mo | Yes | — | — | — |
| 22 | LangWatch | 5.6 | Free plan | €29/mo | Yes | — | — | — |
| 23 | OpenAgent Eval | 5.6 | No | — | Yes | — | hybrid | No |
| 24 | Exgentic | 5.5 | No | — | — | — | code | Yes |
| 25 | HoneyHive | 5.5 | No | — | Yes | — | — | — |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI agent evaluation tool is ranked first on The Geeks Club?
Noveum is ranked #1 of 29 with a score of 7.8. W&B Weave is second and Opik third.
How many of these have a free plan?
18 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Amazon Bedrock Data Automation has the lowest first paid tier we found: $0.01/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.