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Helicone vs Galileo AI Evals
Side-by-side comparison of features, pricing, and ratings
AI observability and eval platform that turns evals into production guardrails
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Freemium
Freemium
Plans
$0/mo
$79/mo
$799/mo
Custom
$0/mo
$100/mo
Contact us
Popularity
2.6k views
6.2k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPI
WebAPICLI
Categories
⚙️ Developer Infrastructure
⚙️ Developer Infrastructure
Features
AI Gateway routing to 100+ models
Per-request LLM observability logging
Rate limiting and cost alerts
Playground for testing prompts with reasoning effort control
Visual thinking display for thinking models
Datasets for versioning prompt data
HQL (Helicone Query Language) for log analytics
Sessions and users tracking
Passthrough billing with 0% markup
Caching, rate limits, automatic fallbacks
MCP (Model Context Protocol) compatibility
1M context window support (Claude Sonnet 4/4.5)
Prompt Management V2 with version control
Embedded observability via OpenAI API
Country-based request filtering
20+ out-of-box evals for RAG, agents, safety, security
Custom evaluators encoding domain expertise
Auto-tune metrics from live feedback
Distill evals into Luna models for low-latency guardrails
Insights engine: identify failure modes and prescribe fixes
Capture groundtruth from synthetic, dev, and production data
Subject matter expert annotations
Guardrail policies block harmful responses
Eval scores control agent actions, tool access, escalation paths
Offline evals become production guardrails
Low-latency evaluation on L4 GPUs
Ingest models, prompts, functions, context, datasets, traces, MCP server
Luna Studio for trustworthy evaluations at low cost
Eval Engineer integration with Claude and Codex
Integrations
OpenAI
Anthropic
Azure
LiteLLM
Anyscale
Together AI
OpenRouter
n8n
NVIDIA NeMo
NVIDIA NIM
CrewAI
MongoDB
GPT-4o
Claude
Codex
MCP server