Galileo

Galileo

Galileo is an AI Reliability Platform for evaluating, monitoring, and safeguarding AI applications in production. It transforms offline evaluation metrics into real-time guardrails, enabling developers to measure accuracy, safety, and performance. Core capabilities include an evaluation engine with 20+ pre-built and custom metrics, a proprietary 'Luna' small language model family for low-latency production monitoring, and a comprehensive observability suite for debugging agent behavior. Target users are AI/ML engineers and teams building RAG systems, chatbots, and agentic workflows who need to move from experimental prototypes to robust production deployments.

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Added on
Jul 9, 2026
Monthly Visits
329.6K
AI EvaluationsProduction GuardrailsLuna SLMsAgent ObservabilityReal-time MonitoringFlexible DeploymentCLHF Auto-Tune
Product information

Everything worth knowing about Galileo

The complete picture — from everyday features to the technical detail builders and IT folks dig for.

Core features

What it actually does

AI Evaluation Engine
Offers over 20 out-of-the-box evaluators for RAG, agents, safety, and security. Automatically tunes metrics from live feedback to create custom, high-accuracy evaluators (often >70% F1).
Luna Models for Production Guardrails
Distills expensive LLM-as-judge evaluators into proprietary small language models (SLMs like Luna-13B/8B) for low-latency (<200ms), low-cost (96% lower) real-time monitoring and intervention.
AI Observability & Insights
Provides end-to-end tracing, agent behavior analysis, and root cause diagnosis to identify failure modes, surface patterns, and prescribe fixes for rapid debugging.
Eval-to-Guardrail Lifecycle
Transforms offline evaluation scores into production governance rules that automatically control agent actions, tool access, and escalation paths without glue-code.
Technical capabilities
Auto-Tune with CLHF
Uses Continuous Learning from Human Feedback (CLHF) to iteratively improve evaluator prompts by adding few-shot examples from expert annotations and production data.
Flexible Deployment Models
Supports SaaS, Virtual Private Cloud (VPC), and On-Premises deployments with dedicated inference servers and enterprise-grade security (RBAC, SSO).
Must watch videos
Meet Galileo: The Evaluation, Observability & Guardrails Stack for AI
4:40
Tutorial4:40
Meet Galileo: The Evaluation, Observability & Guardrails Stack for AI
Every AI team wants to ship faster than ever — but no one wants to ship something that breaks in production. Galileo is the AI reliability platform that lets you do both. In 5 minutes, see how engineering leaders, Heads of AI, and platform teams use Galileo to ship AI agents with confidence: → EVALUATE with research-backed metrics that catch real failures, not vanity scores → SEE every trace, every step, every decision your agents make → PROTECT your users and your brand with Luna Guardrails Drop in one line of code. Works with LangChain, CrewAI, OpenAI, and any OTEL-compatible stack. 👉 Book a demo: https://galileo.ai/demo — CHAPTERS — 0:00 Intro 0:10 The challenge: speed vs. control 0:50 Galileo's three pillars — Evaluation, Visibility, Control 1:15 Get started with one line of code 1:45 Pillar 1 — Evaluation you can trust 2:30 Pillar 2 — Visibility into every agent step 3:15 Pillar 3 — Guardrails that protect your brand 4:25 Built for the entire AI team 4:40 Customer results 4:52 Get started with Galileo — LINKS — 🚀 Book a demo: https://galileo.ai/demo 📚 Documentation: https://docs.galileo.ai 💰 Pricing: https://galileo.ai/pricing ✍️ Blog: https://galileo.ai/blog 💼 LinkedIn: https://linkedin.com/company/galileo-ai 🐦 X / Twitter: https://twitter.com/rungalileo — ABOUT GALILEO — Galileo is the AI reliability platform trusted by engineering teams to evaluate, observe, and control AI agents and LLM applications — from prototype to production. With research-backed evaluation metrics, full-stack agent observability, and Luna Guardrails for real-time protection, Galileo gives you the confidence to ship faster without trading off accuracy, safety, or user trust. Whether you're building customer-facing chatbots, autonomous agents, or RAG applications, Galileo helps your team find and fix failures before your users do. #AIagents #LLMevaluation #AIobservability #LLMOps #AIengineering
Luna Studio: Custom AI Judges, Trained on Your Data | Galileo
2:50
Tutorial2:50
Luna Studio: Custom AI Judges, Trained on Your Data | Galileo
Galileo's Luna Studio turns slow and expensive LLM-as-a-judge evals into live guardrails at scale. The same trained model scores your evals and guards your runtime — in your environment, on your data, in days. In this 2:50 launch film, we walk through training a custom Luna SLM judge end to end: - Start a training run on a common metric (input toxicity) - Bring your test set in from Galileo - Generate synthetic training data with feedback loops on the seed rows - Fine-tune inside your environment, on your own GPUs, with no data egress - Register the trained metric back into Galileo as an eval and a runtime guardrail The result is a low-latency, low-cost SLM judge that runs up to 98% cheaper and 20× faster than an LLM-as-a-judge — fit to your traffic, owned by your team, ready to ship. Luna Studio is built for AI engineers, data scientists, and ML platform teams shipping GenAI agents to production at scale. It runs in your VPC, on-prem, or air-gapped environment — wherever your data already lives. Two surfaces ship together: a guided UI for AI engineers paired with an SME, and an advanced SDK for data scientists who want full hyperparameter control. Already in production with leading enterprise AI teams. 📌 Chapters 0:00 Why Luna Studio 0:18 Start a training run · input toxicity 0:40 Bring your test set in from Galileo 1:05 Generate synthetic training data 1:35 Feedback loop on seed rows 1:55 Generate the final training set 2:05 Fine-tune in your environment 2:30 Register the trained metric 2:45 Recap 🔗 Learn more Luna Studio overview → https://galileo.ai/luna-studio Eval Engineering → https://galileo.ai/evalengineering Book a demo → https://galileo.ai/contact-sales Docs → https://docs.galileo.ai Luna 2 research → https://arxiv.org/abs/2602.18583 📡 Follow Galileo LinkedIn → https://www.linkedin.com/company/galileo-ai X → https://x.com/rungalileo GitHub → https://github.com/rungalileo #LunaStudio #AIEvaluation #LLMasJudge #AIGuardrails #Galileo
Turn Production Failures Into Test Datasets | Galileo Dataset Curation
1:44
Tutorial1:44
Turn Production Failures Into Test Datasets | Galileo Dataset Curation
Your agent breaks in production. You fix it. Two months later, the same failure quietly comes back. The input that broke it? Gone. That's not a debugging problem. It's a missing dataset. In this 2-minute demo, see how Galileo turns low-scoring production traces into curated datasets you can test against. Filter a live logstream by Context Adherence score, inspect the trace where the agent hallucinated an S&P 500 price, and capture it to a regression suite with one click. Every failure, every edge case, every response worth protecting lives in the Dataset Store and grows with every debug. Built for teams running AI agents in production who are tired of fixing the same bug twice. What you'll see: - Filtering production traces by Context Adherence score - Diagnosing a tool-output vs. agent-response hallucination - Copying traces into a new or existing dataset - Using the Dataset Store as a regression suite for prompt and model changes 🔗 Try it on your own agent: https://galileo.ai 🔗 Docs: https://docs.galileo.ai 🔗 Sign up free: https://app.galileo.ai/sign-up 🔗 Follow Galileo on LinkedIn: https://www.linkedin.com/company/galileo-ai 0:00 Your agent breaks. The input that broke it is gone. 0:15 That's not a debugging problem. It's a missing dataset. 0:22 Live logstream with metrics on every trace 0:32 Filter for traces below 70% on Context Adherence 0:42 Click into a trace to see what went wrong 0:50 The hallucinated S&P 500 price 1:02 Select traces and Copy to Dataset 1:15 Create a new dataset and name it 1:20 The Dataset Store — every failure worth protecting 1:25 Agents don't stay still. Curated datasets keep up. 1:40 Learn more at Galileo.ai

Who uses it

Real use cases, no hype
RAG Application Evaluation
Monitor hallucination rates and retrieval accuracy for Retrieval-Augmented Generation systems.
Agent Behavior Observability
Track multi-step agent workflows, identify failure modes, and debug complex tool usage.
Production Guardrails
Deploy real-time safety and content filtering to block harmful outputs before they reach users.
Continuous Eval Engineering
Build, auto-tune, and maintain custom evaluators for domain-specific AI applications.
CI/CD for AI Systems
Integrate unit testing and evaluation into the development lifecycle to ensure quality before deployment.
AI Cost & Latency Optimization
Replace expensive LLM-as-judge calls with optimized Luna models for production monitoring.
What's great
  • Free tier for developers to experiment
  • Excellent accuracy with F1 scores >70%
  • Massive cost reduction (up to 96%) for production monitoring
Technical strengths
  • Unified platform from eval to real-time guardrails
  • Proprietary Luna models for low-latency inference (<200ms)
  • Auto-tuning evaluators via CLHF continuous learning
Where it falls short
  • Steep learning curve for custom evaluator creation
  • High cost for Enterprise tier
  • Limited free tier traces (5k/month)
Technical limitations
  • Luna models are proprietary and not open-source
  • VPC/on-prem deployment requires Enterprise plan
  • Accuracy of Luna models trails large LLM judges slightly
For technical folks

The deep-dive specs

Core Architecture
Evaluation Engine with proprietary Luna SLMs
Model Variants
Luna-1 (3B, 8B parameters)
Typical Latency
<200ms for Luna model inference
Key Integration
SDKs & APIs for Python/JavaScript

FAQ

Includes technical Q&A
Galileo provides a full lifecycle platform (observability, auto-tuning, guardrails) and proprietary Luna models for low-cost production use, unlike standalone OSS libs.

Traffic Insights

Monthly Visits

329.6K

September 2026

Growth Rate

0%

vs last month

Dominance

0,58%

in Analytics

Top Country

Top Countries Breakdown

Growth Trend

Stable

Traffic has remained stable.

Honest pricing

No sneaky tiers, no “contact sales”

Here's who each plan is actually for — and where the hidden charges might hit.

Free
Free

Developers & Small Teams

  • 5000 traces per month
  • Unlimited users
  • Unlimited custom evals
Pro
Most picked
$150/mo

Teams Launching Apps

  • 50000 traces per month
  • Standard RBAC
  • Advanced analytics & insights
  • Dedicated support: Slack
Enterprise
Contact us/mo

Enterprise Teams

  • Unlimited traces
  • Custom rate limits
  • Deploy: Hosted
  • VPC
  • or on-prem
  • Enterprise-grade security & RBAC
  • SSO
Reviews

What the internet actually thinks

Data refreshed weekly. No paid placements.

Trustpilot
Not reviewed yet
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Capterra
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Product Hunt
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Detail tags
Found via these searches
#AI#Observability#Evals#LLM#RAG#Agents#Monitoring