Langfuse vs LiteLLM

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-08-14
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At a glance

DimensionLangfuseLiteLLM
PricingOpen-source (free) + Cloud with usage-based pricingOpen-source (free) + Enterprise from $5K/yr
Best ForEngineering teams, production LLM observabilityPlatform teams, multi-provider cost tracking
Core FeatureObservability, evaluations & prompt managementAI gateway with fallbacks & spend tracking
LLM SupportAny model (traced via integrations)100+ models via unified API
Self-HostingYes, open-sourceYes, open-source
Latest NewsMulti-modal datasets, monitors & alerts, AI searchMigrating core to Rust for performance

If you need to centrally manage and route requests across 100+ LLMs with cost tracking and fallbacks, LiteLLM is your gateway. If you need deep observability, prompt management, and evaluations for production LLM apps, Langfuse is the observability layer. They integrate together, so a powerful stack uses both.

Langfuse
Langfuse

Open-source LLM observability that traces, evaluates, and manages prompts from prototype to production.

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LiteLLM
LiteLLM

Self-hosted open-source AI gateway for 140+ LLM providers, one OpenAI API, cost control.

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Pricing
Freemium
Freemium
Plans
$0/mo
$29/mo
$199/mo
$2499/mo
$0/mo
Custom (Annual)
Popularity
6.4k views
5.1k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPI
APICLI
Categories
📡 LLM Observability & Evals
🚦 LLM Gateways & Model Routers
Features
Hierarchical traces with filtering by user, session, cost, latency, or metadata
Real-time ingestion (v4, up to 165x faster)
LLM-as-a-judge evaluations
Heuristic and boolean evaluations
Prompt versioning with one-click deploy and rollback
LLM Playground to test prompts on production inputs
Experiments with side-by-side test case comparison
Human annotation queues and golden dataset creation
Cost and latency dashboards with alerts
Pulse chart strip to spot trace outliers
Graph view with aggregated and expanded modes
Multi-modal data support (images, audio, video)
OpenTelemetry-native instrumentation
Python and TypeScript native SDKs
One OpenAI-compatible API to 140+ providers and 1,800+ models
Day-0 support for new models (e.g., Claude Opus 5)
Rust-based gateway core with low overhead and memory footprint
Auto Router v2 with complexity, semantic, and adaptive routing
Router Plugins to customize routing signals
Virtual keys, teams, and scoped access with SSO
Spend tracking by key, user, team, and org
Budget caps and rate limits (RPM/TPM)
LLM fallbacks across providers with cooldowns
Load balancing and retries across deployments
Support for MCP servers and agents
Guardrails integrations (Presidio, Lakera, Aporia, Bedrock Guardrails)
Observability via Prometheus, Langfuse, OpenTelemetry
Self-hosted and air-gapped deployment
Bring your own internal, fine-tuned, and self-hosted models
Integrations
LangChain
Vercel AI SDK
LiteLLM
Pydantic AI
Google ADK
CrewAI
LiveKit
OpenAI
Anthropic
Amazon Bedrock
Azure OpenAI
Mistral AI
Google Gemini
xAI
vLLM
Vertex AI
AWS Bedrock
Cloudflare
Langfuse
Arize Phoenix
Langsmith
OpenTelemetry
S3
GCS
Prometheus
Presidio

Who should pick which

  • Platform team managing multi-provider access
    Pick: LiteLLM

    LiteLLM provides unified API, fallbacks, and spend tracking across 100+ LLMs.

  • Production LLM engineer debugging traces
    Pick: Langfuse

    Langfuse offers deep hierarchical traces, evaluations, and prompt management.

  • Enterprise needing cost chargebacks per team
    Pick: LiteLLM

    LiteLLM tracks spend per key/user/team/org and integrates with S3/GCS.

  • Team building multi-modal LLM apps
    Pick: Langfuse

    Langfuse now supports multi-modal datasets with images, audio, video.

  • Team wanting observability + prompt versioning
    Pick: Langfuse

    Langfuse combines tracing, evals, playgrd, and prompt management in one platform.

Frequently Asked Questions

Langfuse vs LiteLLM: which should you choose?

If you need to centrally manage and route requests across 100+ LLMs with cost tracking and fallbacks, LiteLLM is your gateway. If you need deep observability, prompt management, and evaluations for production LLM apps, Langfuse is the observability layer. They integrate together, so a powerful stack uses both.

Can LiteLLM and Langfuse be used together?

Yes. LiteLLM integrates with Langfuse for LLM observability, enabling cost tracking and tracing.

Which is better for multi-provider fallback?

LiteLLM, as it provides automatic fallbacks and retries across 100+ LLMs with cooldowns.

Does Langfuse offer gateway features like load balancing?

No. Langfuse focuses on observability, not request routing or load balancing.

Are both products open-source?

Yes, both are open-source and can be self-hosted for free.

Which one has better evaluation tools?

Langfuse, with LLM-as-a-judge, heuristic evals, code evaluators, and human annotation.

Does LiteLLM have a cloud managed version?

LiteLLM offers an Enterprise tier but primarily targets self-hosted or proxy deployment.

Does Langfuse support multi-modal data?

Yes, as of June 2026, Langfuse supports images, audio, video, and documents in datasets.

Which product is better for cost tracking?

LiteLLM, with automatic spend tracking per key/user/team/org and budget enforcement.

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Last reviewed: May 12, 2026