Best AI LLM Evaluation Tools in 2026
Updated
30ranked
0free plans on this page
9 Oct 2026last checked
0 apps show full bars: free, open, on most devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 26 | Parler-TTSWeb · Self-hosted | One bar | 1 of 6 | 5.5 | |||
| 27 | Pydantic EvalsLinux | One bar | 1 of 6 | 5.5 | |||
| 28 | UpTrainWeb · Self-hosted · API | One bar | 1 of 6 | 5.5 | |||
| 29 | ARESLinux · Self-hosted · API | One bar | 1 of 6 | 5.4 | |||
| 30 | RagasLinux · Self-hosted · API | One bar | 1 of 6 | 5.4 |
Compare all 5 in a table
| # | App | Score | Free plan | Paid from | Evaluation methods | Model support |
|---|---|---|---|---|---|---|
| 26 | Parler-TTS | 5.5 | ||||
| 27 | Pydantic Evals | 5.5 | Yes | Deterministic checks; custom evaluators; LLM judges; G-Eval; performance checks; report evaluators; span-based evaluation; agentic trajectory evaluation | OpenAI; Anthropic; Gemini; xAI; Bedrock; Cerebras; Cohere; Groq; Hugging Face; Mistral; OpenRouter; and other listed Pydantic AI providers | |
| 28 | UpTrain | 5.5 | preconfigured checks; custom prompt evaluations; custom Python evaluations; model-graded evaluations; classification; chain-of-thought classification; regression testing; experiments | OpenAI; Azure; Claude; Mistral; Together AI; Anyscale; Ollama; Hugging Face; Replicate; custom endpoints | ||
| 29 | ARES | 5.4 | ||||
| 30 | Ragas | 5.4 | Yes |