Galileo vs DeepEval
Detailed side-by-side comparison to help you choose the right tool
Galileo
🔴DeveloperAI Evaluation
Galileo review 2026: enterprise AI evals, observability, guardrails, and Luna evaluator models for RAG and agents — features, pricing, pros, cons.
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CustomDeepEval
🔴DeveloperTesting & Quality
Open-source LLM evaluation framework with 50+ research-backed metrics including hallucination detection, tool use correctness, and conversational quality. Pytest-style testing for AI agents with CI/CD integration.
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FreeFeature Comparison
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Galileo - Pros & Cons
Pros
- ✓Luna evaluators are dramatically cheaper than LLM-as-judge — eval coverage can stay on in production
- ✓End-to-end coverage: evals + traces + guardrails + agent root-cause from one vendor
- ✓Strong enterprise compliance posture (VPC, audit, SSO) suitable for regulated industries
Cons
- ✗No public pricing — every conversation starts with sales, which slows POC adoption
- ✗Heavier and more opinionated than open-source [/tools/langfuse](/tools/langfuse) or [/tools/arize-phoenix](/tools/arize-phoenix) — early-stage teams may find it overkill
- ✗Luna evaluators are proprietary — verify quality on your domain before assuming they replace LLM-judge in your stack
DeepEval - Pros & Cons
Pros
- ✓Comprehensive LLM evaluation metric suite — 50+ metrics covering hallucination, relevancy, tool correctness, bias, toxicity, and conversational quality
- ✓Pytest integration feels natural for Python developers — LLM tests run alongside unit tests in existing CI/CD pipelines with deployment gating
- ✓Tool correctness metric specifically designed for validating AI agent behavior — checks correct tool selection, parameters, and sequencing
- ✓Open-source core (MIT license) runs locally at zero platform cost — only pay for LLM API calls used by metrics
- ✓Confident AI cloud offers low-cost tracing at $1/GB-month with adjustable retention — competitive pricing for the observability tier
- ✓Active development with frequent new metrics and features — grew from 14+ to 50+ metrics, backed by Y Combinator
Cons
- ✗Metrics require LLM API calls (GPT-4, Claude) for evaluation — adds cost that scales with dataset size and metric count
- ✗Some metrics can be computationally expensive and slow for large evaluation datasets, especially multi-turn conversational metrics
- ✗Confident AI cloud required for collaboration, dataset management, monitoring, and dashboards — open-source alone lacks team features
- ✗Metric accuracy depends on the evaluator model quality — weaker models produce less reliable scores, creating cost pressure to use expensive models
- ✗Free tier of Confident AI is restrictive: 5 test runs/week, 1 week data retention, 2 seats, 1 project
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