LiteLLM

Call 100+ LLMs using the OpenAI format.

Overview

LiteLLM is a lightweight and open-source Python library that provides a standardized interface for interacting with a wide range of Large Language Models (LLMs) from providers like OpenAI, Azure, Anthropic, Cohere, and more. It allows developers to switch between different LLMs with minimal code changes by using a consistent input/output format based on the OpenAI API. LiteLLM also offers features for cost tracking, budget management, rate limiting, and fallbacks, making it a versatile tool for both development and production environments. It can be used as a Python SDK or deployed as a proxy server for centralized management of LLM access.

✨ Key Features

Unified API for 100+ LLM providers
Consistent input/output format (OpenAI compatible)
Cost tracking and budget management
Rate limiting and request throttling
Automatic retries and fallbacks
Streaming support
Proxy server for centralized management
Support for local and private LLMs (e.g., via Ollama)
Extensible with custom logging and callbacks
JWT Authentication and SSO for enterprise

🎯 Key Differentiators

Extensive support for over 100 LLMs
Open-source with a strong community
Self-hosting option for data privacy and control
Focus on enterprise-grade features like SSO and audit logs

Unique Value: LiteLLM offers a unified interface to a vast number of LLMs, preventing vendor lock-in and simplifying development, while providing robust tools for managing costs and ensuring reliability in production.

🎯 Use Cases (6)

Rapidly prototype with different LLMs Build applications with multi-LLM support Manage and monitor LLM costs in production Provide centralized LLM access for teams Ensure application reliability with model fallbacks A/B test different models for performance and cost

            ✅ Best For
            Centralized LLM gateway for enterprises
Cost and usage monitoring for AI applications
Adding resilience to LLM-powered features

        

💡 Check With Vendor

Verify these considerations match your specific requirements:

Applications requiring deep, provider-specific features not exposed by the unified API

🏆 Alternatives

OpenRouter Helicone Portkey

Compared to alternatives, LiteLLM's primary strengths are its extensive list of supported models and its open-source nature, which allows for greater flexibility and control, especially for self-hosting.

💻 Platforms

Web API

✅ Offline Mode Available

🔌 Integrations

Langfuse Helicone PromptLayer LangSmith Datadog Sentry Grafana Prometheus OpenTelemetry Arize Phoenix Traceloop Slack API

🛟 Support Options

✓ Email Support
✓ Live Chat
✓ Dedicated Support (Enterprise tier)

🔒 Compliance & Security

✓ SOC 2 ✓ GDPR ✓ ISO 27001 ✓ SSO ✓ SOC-2 Type 2 ✓ ISO 27001

💰 Pricing

Contact for pricing

Free Tier Available

✓ 7-day free trial

Free tier: The open-source version is free to self-host with access to all core features.

Visit LiteLLM Website →

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