Helicone vs LiteLLM
Updated March 10, 2026
Overview
Helicone is an open-source LLM observability and proxy platform. By adding a single line of code, developers get request logging, cost tracking, caching, rate limiting, and analytics for their LLM applications. Helicone supports all major LLM providers and can function as both a gateway proxy and a logging-only integration.
LiteLLM is an open-source LLM proxy that translates OpenAI-format API calls to 100+ LLM providers. It provides a standardized interface for calling models from Anthropic, Google, Azure, AWS Bedrock, and dozens more. LiteLLM is popular as a self-hosted gateway with features like spend tracking, rate limiting, and team management.
Key features
Core capabilities each platform advertises.
- LLM observability and monitoring
- Cost tracking and analytics
- Request caching
- Rate limiting and user management
- Open-source with managed option
- Open-source LLM proxy
- OpenAI-compatible API for 100+ providers
- Budget management and rate limiting
- Self-hostable
- Automatic retries and fallbacks
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Extremely simple integration (one line of code)
- Open-source with self-hosting option
- Generous free tier (100k requests)
- Supports all major LLM providers
Cons
- Advanced features require paid tiers
- Data retention limited on free tier
- Self-hosting requires technical expertise
Pros
- Free open-source core with MIT license
- Unified interface to 100+ LLM providers
- 18k+ GitHub stars with strong community
- Trusted by major enterprises
Cons
- Hidden operational costs (USD 200-500/mo infrastructure)
- Production latency overhead (20-40ms typical)
- Enterprise features require USD 30k annual fee
- Operational burden for self-hosting teams
Helicone or LiteLLM — which should you choose?
Choose Helicone if you wantChoose if you want
- LLM cost monitoring and optimization
- Production request debugging
- User-level usage tracking and rate limiting
- Caching to reduce latency and cost
- Team-wide LLM spend management
Choose LiteLLM if you wantChoose if you want
- Self-hosted LLM gateway for data control
- Standardizing LLM access across teams
- Budget enforcement per team or project
- Provider migration without code changes
- Open-source LLM infrastructure
Compare Helicone and LiteLLM on your own traffic
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.