Teams operating production LLM or agent systems and Shared experiments and release gates.
Who should avoid it?
Small projects served by local tests, Teams without labeled acceptance cases
What problem does it solve?
Galileo combines experiments, datasets, custom and built-in metrics, tracing, production monitoring, and guardrails for LLM and agent applications.
Would I recommend it?
Shortlist Galileo when evaluation is becoming a team operating system rather than a notebook. Do not buy on metric count: require stable agreement with human reviewers, useful root-cause analysis, predictable trace economics, and an approved data path.
Galileo combines experiments, datasets, custom and built-in metrics, tracing, production monitoring, and guardrails for LLM and agent applications.
Direct verdict
Shortlist Galileo when evaluation is becoming a team operating system rather than a notebook. Do not buy on metric count: require stable agreement with human reviewers, useful root-cause analysis, predictable trace economics, and an approved data path.
What to verify
Build 200 expert-labeled cases covering correct, subtly wrong, unsafe, slow, and expensive outputs. Compare Galileo metrics with blinded human labels, perturb prompts and judge models, inspect false passes and false failures, then measure cost per release and time to diagnose a seeded production regression.
Personal Recommendation
Shortlist Galileo when evaluation is becoming a team operating system rather than a notebook. Do not buy on metric count: require stable agreement with human reviewers, useful root-cause analysis, predictable trace economics, and an approved data path.
Teams operating production LLM or agent systems, Shared experiments and release gates, Organizations needing deployment options.
Who should avoid it?
Small projects served by local tests, Teams without labeled acceptance cases
What problem does it solve?
Galileo combines experiments, datasets, custom and built-in metrics, tracing, production monitoring, and guardrails for LLM and agent applications.
Would I recommend it?
Shortlist Galileo when evaluation is becoming a team operating system rather than a notebook. Do not buy on metric count: require stable agreement with human reviewers, useful root-cause analysis, predictable trace economics, and an approved data path.
Overall Score
8.2
Ease of Use
8.0
AI Quality
8.0
Features
8.4
Speed
8.0
Integrations
8.2
Value for Money
8.2
Customer Support
7.6
Learning Curve
7.6
Recommended For
Teams operating production LLM or agent systems
Shared experiments and release gates
Organizations needing deployment options
Not Recommended For
Small projects served by local tests
Teams without labeled acceptance cases
Buyers budgeting only the platform subscription
Recommended Because…
Free 5,000-trace entry tier
Scores use a 0-10 editorial scale. The source data is maintained as 5-point review dimensions, then normalized for reader-friendly comparison.
Reusable trial worksheet
Test Galileo before you commit
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DiscoverAI evaluation worksheet
Galileo AI Review 2026: Evals, Pricing, and Limitations
Confirm the tool meets every must-have workflow and stakeholder requirement.
Review starting point: Teams operating production LLM or agent systems; Shared experiments and release gates; Organizations needing deployment options
Run the same representative work you would use in production; do not score a polished demo.
Review starting point: Complete three to five representative tasks with known acceptable outcomes and compare them with your current process.
Calculate the effective cost per accepted result, including usage, review, corrections, and required add-ons.
Review starting point: Free includes 5,000 traces monthly and unlimited users and custom evals. Pro starts at $100 monthly when billed yearly with 50,000 traces; higher volume and Enterprise pricing are custom. Model-judge costs may be separate. Reviewed September 12, 2026.
Define an acceptance threshold, test known answers and edge cases, and record every correction.
Review starting point: Editorial quality signals: features 4.2/5; AI quality 4.0/5. Validate these signals in your own work.
Verify what data enters the product, who can access it, how long it is retained, and whether it trains models.
Review starting point: Use approved low-risk data first. Check roles, consent, deletion, subprocessors, model-training settings, and the contract—not only the marketing page.
Test the real handoffs, permissions, failure states, and export path your team depends on.
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Product interface evidence
Visual evidence statusWhat we verified without a screenshot
Evaluation
Research-based
Price posture
From $0/month
Reviewed
2026-09-12
No authentic product screenshot is published for this review. DiscoverAI does not use generated interface images as product evidence.
Pricing
Freemium
Free includes 5,000 traces monthly and unlimited users and custom evals. Pro starts at $100 monthly when billed yearly with 50,000 traces; higher volume and Enterprise pricing are custom. Model-judge costs may be separate. Reviewed September 12, 2026.
Free plan: Yes. The Free plan includes 5,000 traces per month.
Editorial freshness
Checked this month
Pricing and material product claims were checked September 12, 2026.
Pros & Cons
Pros
Free 5,000-trace entry tier
Experiments, monitoring, and guardrails together
Enterprise deployment choices
Cons
Judge calibration remains buyer work
Trace volume can scale quickly
Enterprise controls are quote-based
Best For
Teams operating production LLM or agent systemsShared experiments and release gatesOrganizations needing deployment options
Community evidence
How verified users put Galileo to work
Structured, editor-moderated experience—not star ratings. This complements our independent review and never changes its score.
No approved community evidence yet. Be the first verified user to contribute.
Key Features
Experiments
Versioned datasets
Agent traces
Custom metrics
Production monitoring
Guardrails
Integrations
OpenAI
Anthropic
LangChain
LlamaIndex
Python
OpenTelemetry
FAQs
What is Galileo?
Galileo combines experiments, datasets, custom and built-in metrics, tracing, production monitoring, and guardrails for LLM and agent applications.
How much does Galileo cost?
Free includes 5,000 traces monthly and unlimited users and custom evals. Pro starts at $100 monthly when billed yearly with 50,000 traces; higher volume and Enterprise pricing are custom. Model-judge costs may be separate. Reviewed September 12, 2026.
Who should use Galileo?
Teams operating production LLM or agent systems, Shared experiments and release gates, Organizations needing deployment options.
What should buyers test before choosing Galileo?
Build 200 expert-labeled cases covering correct, subtly wrong, unsafe, slow, and expensive outputs. Compare Galileo metrics with blinded human labels, perturb prompts and judge models, inspect false passes and false failures, then measure cost per release and time to diagnose a seeded production regression.
Turn agent traces into repeatable datasets, experiments, evaluations, and error analysis
4.1
Gentrace is an AI agent tracing and evaluation platform for organizing test cases, running experiments, deriving quality signals, and investigating failures across development and production traces.
Open-source tracing and evaluation for LLM, RAG, and agent applications
4.0
Phoenix gives teams OpenTelemetry-based traces, evaluations, experiments, datasets, and prompt tooling in a self-hostable project, but telemetry volume, sensitive content, evaluator validity, and operations remain buyer-owned.