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Head-to-head · Llm Monitoring

Langfuse vs Helicone

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Langfuse #3 in Llm Monitoring 8.9/10 Free plan Free plan✓ 2 of 3 features Visit Langfuse
Helicone #8 in Llm Monitoring 8.4/10 Free plan · 7-day trial Free planFree trial✓ 2 of 3 features Visit Helicone

Langfuse leads on 1 check, Helicone on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreLangfuse · 8.9/10
  • Lowest starting priceLangfuse · $29/mo
  • Free planboth
  • Free trialonly Helicone

Langfuse scores higher on our rubric for llm monitoring: 8.9 against 8.4 out of 10; our editors rank them #3 and #8.

Langfuse is cheaper to start at $29/mo against $79/mo.

Langfuse is the better fit for teams seeking open-source, full-stack observability. Helicone is the better fit for teams needing a model gateway with observability.

  • Langfuse fits best

    Teams seeking open-source, full-stack observability

  • Helicone fits best

    Teams needing a model gateway with observability

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Langfuse 8.9/10 Visit ↗ Helicone 8.4/10 Visit ↗
At a glance
Editor score 8.9 8.4
Ranking #3 in Llm Monitoring #8 in Llm Monitoring
Best for Teams seeking open-source, full-stack observability Teams needing a model gateway with observability
Pricing model Free plan + paid Free plan + paid
Starting price $29/mo (best) $79/mo
Free plan ✓ ✓
Free trial — 7 days
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Support Email, Live chat, Community, Docs Email, Community, Docs
Compliance SOC 2, ISO 27001, GDPR, HIPAA SOC 2, HIPAA, SSO/SAML
Integrations 100+ integrations 10 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Langfuse 2/3 · Helicone 2/3
LLM tracing ✓ ✓
Evaluation support ✓ ✓
Alerts Not checked yet Not checked yet
Specs
Deployment options Both Both
Trace retention Not checked yet Not checked yet
LLM providers Not checked yet Not checked yet
Our review
Pros
  • Traces model calls, agents, tools, and retrieval steps
  • Combines evaluations, prompt management, and cost tracking
  • Offers cloud and self-hosted deployment with 100 integrations
  • Routes requests to 100+ models through an OpenAI-compatible gateway
  • Combines tracing, prompt management, evaluations, and cost analytics
  • Offers cloud or Docker-based self-hosted deployment
Cons
  • Hobby plan limits usage to 50k units per month and 2 users
  • Pro costs $199/month for longer data access and added controls
  • Enterprise security and support features require higher-priced plans
  • Pro starts at $79/month, with usage-based pricing also applying
  • Hobby limits usage to 10,000 requests and storage to 1 GB
  • The free plan is limited to one seat and one organization
Our verdict

For teams building and operating LLM applications, Langfuse brings tracing, evaluation, prompt management, and cost tracking into one open-source platform. It records structured traces across model calls, agent and tool activity, and…

Read the review →

Helicone brings model routing and LLM observability into one platform for developers and teams building AI applications. Its OpenAI-compatible gateway supports 100+ models, while request logging and dashboards cover requests, sessions,…

Read the review →
  1. LangfuseLlm Monitoring 8.9Free plan
  2. HeliconeLlm Monitoring 8.4Free plan · 7-day trial

Strengths and trade-offs

  • Langfuse — where it wins

    • Traces model calls, agents, tools, and retrieval steps
    • Combines evaluations, prompt management, and cost tracking
    • Offers cloud and self-hosted deployment with 100 integrations

    Where it doesn't

    • Hobby plan limits usage to 50k units per month and 2 users
    • Pro costs $199/month for longer data access and added controls
    • Enterprise security and support features require higher-priced plans

  • Helicone — where it wins

    • Routes requests to 100+ models through an OpenAI-compatible gateway
    • Combines tracing, prompt management, evaluations, and cost analytics
    • Offers cloud or Docker-based self-hosted deployment

    Where it doesn't

    • Pro starts at $79/month, with usage-based pricing also applying
    • Hobby limits usage to 10,000 requests and storage to 1 GB
    • The free plan is limited to one seat and one organization
  • Langfuse8.9/10 · Free plan

    Trace LLMs, agents, retrieval, evaluations, prompts, and costs in cloud or self-hosted deployments.

    Visit LangfuseFull verdict →
  • Helicone8.4/10 · Free plan · 7-day trial

    A model gateway paired with tracing, prompt workflows, evaluations, and cost analytics.

    Visit HeliconeFull verdict →

More comparisons

All llm monitoring comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update