Evidently
Observability & Evals · Free + paid
ML model monitoring and data quality checks
At a glance
- Made by
- Evidently AI
- Korean
- None (English and a few others only)
- API
- Yes
- Available on
- Web, API
- Open source
- Apache 2.0
- GitHub
- 7,987 stars · Apache-2.0
What is Evidently?
Evidently is an open-source framework (Apache 2.0) that helps you evaluate, test, and monitor data and AI systems. It can be used as a standalone Python library or as a self-hosted platform. The Python library provides 100+ metrics, a declarative test API, and a lightweight visual interface for exploring results, and it also supports synthetic data generation and prompt optimization. The platform provides tracing, storage of AI app data and evaluation runs, test dataset management, and dashboards. It covers everything from data drift and data quality monitoring for predictive ML models to LLM system evaluation.
- 100+ built-in metrics (from data drift to LLM judging)
- Reports and Test Suites with pass/fail conditions
- Synthetic data generation (edge cases, adversarial inputs)
- Continuous monitoring with live dashboards
- LLM evaluation: hallucination, PII detection, retrieval quality, toxicity, and more
- Prompt optimization
- Tracing and test dataset management (platform)
Who uses Evidently and for what
- Evaluating LLM products such as chatbots, RAG, AI agents, and copilots
- Monitoring performance, data drift, and data quality of predictive ML models
- CI/CD regression testing and data validation
Pricing
What you get for free — Yes (open-source self-hosted + Evidently Cloud free tier; limits are not in the source text)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.
AI tools similar to Evidently (alternatives)
Evidently vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| Evidently | Free + paid | 0 | 3 | Yes | — | No |
| Arize AI | Free + paid | 0 | 3 | Yes | $50/mo | No |
| Fiddler AI | Free + paid | 0 | 3 | Yes | — | No |
3 of these 3 tools have a free plan. Cheapest paid plan: Arize AI ($50/mo).
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
Evidently on AI Galaxy Map
- One of 27 AI tools in the Observability & Evals field.
- Connected to 3 other tools — #20 in its field.
Frequently asked questions
Can I use Evidently for free?
Yes (open-source self-hosted + Evidently Cloud free tier; limits are not in the source text). Prices can change, so check the official site before paying.
What AI can I use instead of Evidently?
Tools that do the same job, such as Arize AI, Fiddler AI, WhyLabs, are connected to it on the map.
Can I use Evidently in Korean?
None (English and a few others only)
Sources (official pages)
- https://www.evidentlyai.com/
- https://docs.evidentlyai.com/introduction
- https://github.com/evidentlyai/evidently
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.