Compare Tools
Pick a category, then select 2–3 tools to compare side by side.
Category
Select 2–3 tools to compare
Helicone
LangfuseLlm Tracing
Cost Tracking
Evaluation
Prompt Management
Real Time Monitoring
Pricing
Free (100k requests)$20/mo GrowthCustom Enterprise
Free (self-hosted)Free cloud (50k observations)$59/mo ProCustom Enterprise
Open Source
Self-Hosted
SDK Languages
pythonjavascripttypescript
pythonjavascripttypescript
Frameworks
langchainllamaindexvercel-aiopenai-agents
langchainllamaindexvercel-aiopenai-agents
Compliance
soc2gdpr
soc2gdpr
Best For
Lightweight LLM proxy with cost tracking, caching, and rate limiting — minimal integration effort
Open-source LLM tracing, prompt management, and evaluation — self-hostable with broad framework support
Limitations
Proxy-based architecture adds a network hop; less deep tracing than Langfuse; evaluation features are basic
Smaller ecosystem than Datadog; self-hosted requires Postgres + ClickHouse; evaluation features are still maturing
Supported Not supported Unverified