Helicone AI is an open-source, self-hosted AI gateway and LLM observability platform that provides a unified OpenAI-compatible interface to access 100+ different large language model (LLM) providers in a single API.

What are the key features?

The key features include a Unified Interface to use OpenAI SDK syntax for multiple LLM providers like OpenAI, Anthropic, and Google without switching APIs. It offers Load Balancing & Failover with intelligent routing of requests based on latency, health, and error rates, including automatic failover for 99.99% uptime. Caching provides semantic similarity-based response caching to improve performance and reduce costs with configurable cache durations. Rate Limiting supports per-user, per-session, and custom rate limits. Observability features real-time monitoring, request/response logging, token usage, latency metrics, and cost analytics across providers. Prompt Management allows users to manage and reuse prompt templates with dynamic variable substitution via the AI Gateway. Finally, Self-Hosting & Cloud Options enable using Helicone as a fully self-hosted solution for control or via their cloud-hosted AI Gateway.

How to get started with Helicone?

To get started with Helicone, first create an account on Helicone.ai, then generate your Helicone API key. Next, choose your integration method, which can be a cloud-hosted endpoint or self-hosted. Finally, make your first AI request using OpenAI-compatible SDKs with Helicone as the base URL.

How does billing and credits work?

Helicone manages API keys to different providers for you. You add credits to your account with zero markup and unified billing. This avoids managing multiple provider accounts and allows seamless switching between models.

Helicone provides security and compliance measures including SOC-2 certification and practices; detailed info is available in their security FAQ.

What models can I use?

You can access over 100 LLM models including GPT-4 variants, Anthropic’s Claude, and others via a single API interface.

Can I self-host Helicone?

Yes. Helicone offers comprehensive documentation for self-hosting their observability and gateway platform, including database setup and service start scripts.

Where can I get help?

Help is available through several channels, including documentation at docs.helicone.ai, support via email at help@helicone.ai or support@helicone.ai, and community engagement through Discord and GitHub repositories.

Helicone

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Helicone AI is an open-source gateway and observability platform for AI applications. It offers a single API to connect to over 100 large language models, simplifying how you route requests, debug problems, and analyze performance. This helps you build robust and cost-effective AI tools.

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Overview Features Use Cases FAQ Integrations Pricing

About Helicone

Who It's For

This tool is for anyone building applications with AI, especially if you use many different AI models. If you want to make your AI apps reliable, easy to manage, and simple to monitor, Helicone helps keep track of how your AI is working.

What You Get

You get a single way to talk to over 100 different AI models, like OpenAI. It routes requests smartly, keeping your apps online. You can save responses, set usage limits, and see how your AI performs and costs in real-time. It also helps manage your AI prompts.

How It Works

First, you sign up and get an API key. Then, your AI app sends requests through Helicone. Helicone directs these requests to the correct models, watches performance, and logs everything. It handles connecting to different AI providers, letting you focus on your app.

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Features & Capabilities

⚙️ Core AI Gateway & Routing

Universal Model Access

Connect to over 100 LLM models through a single, unified API interface with 0% markup fees.

Intelligent Request Routing

Route, manage, and scale LLM requests to optimize performance and reliability for AI applications.

📊 LLM Observability & Analytics

Comprehensive Debugging

Identify and resolve issues within LLM applications using detailed request logs and tracing capabilities.

Performance Analytics Dashboard

Gain insights into application usage, user behavior, and LLM performance metrics through custom dashboards.

Custom Alerts & Monitoring

Set up real-time notifications for critical events, such as rate limit breaches or unusual request patterns.

💡 Prompt Management & Optimization

Prompt Improvement Tools

Iterate and refine prompts to enhance LLM output quality and relevance through structured workflows.

Interactive Playground

Experiment with different prompts and models in a real-time environment to test and optimize responses.

Dataset Management

Organize and manage datasets for comprehensive prompt testing and LLM fine-tuning.

🔗 Extensive LLM Integrations

Multi-Provider Compatibility

Seamlessly integrate with leading LLM providers including OpenAI, Anthropic, Azure, Anyscale, and Together AI.

LiteLLM & OpenRouter Support

Utilize LiteLLM and OpenRouter for simplified API access and broader model interoperability.

Use Cases

Streamlining Multi-LLM API Integration and Cost Management

AI developers often struggle with integrating various LLM providers, managing multiple API keys, and consolidating billing. Helicone provides a unified API gateway that simplifies access to over 100 models, offers unified billing with zero markup, and enables seamless switching between providers, significantly reducing development complexity and administrative overhead.

AI DevelopmentFor: AI Developers

Enhancing AI Application Reliability and Performance

Building robust AI applications requires high availability and optimal performance, which is challenging when dealing with external LLM services. Helicone's load balancing, automatic failover, and intelligent request routing ensure 99.99% uptime and low latency. Additionally, semantic caching reduces response times and operational costs, making AI applications more reliable and efficient.

B2B SaaSFor: DevOps Engineers

Optimizing LLM Prompt Engineering and Debugging with Full Observability

Developers and prompt engineers need granular insights into LLM interactions to debug issues, optimize prompt performance, and understand usage patterns. Helicone offers real-time monitoring, detailed request/response logging, token usage tracking, and cost analytics, alongside prompt management features, empowering teams to refine prompts and continuously improve AI application behavior.

AI DevelopmentFor: Prompt Engineers

Deploying Secure and Compliant Self-Hosted AI Gateways

Organizations with strict data privacy or regulatory compliance requirements need maximum control over their AI infrastructure. Helicone provides comprehensive self-hosting options for its AI gateway and observability platform, coupled with SOC-2 certification, allowing enterprises to deploy and manage their LLM interactions securely within their own environments while maintaining full data sovereignty.

Enterprise SoftwareFor: CTOs

Frequently asked questions

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