Hands-on tested · Updated 2026
Completely free - no payment needed.
Where it falls short
Limited documentation
Helicone AI is an open-source LLM observability tool designed for developers. It offers a range of features to help monitor and manage large language models. The interface is clean and user-friendly. It's suitable for developers who need to monitor and manage LLMs.
From registration to actual use - step by step
Visit Helicone website to register. Helicone is an LLM observability platform that helps developers monitor, debug, and optimize AI app requests and costs.
Go to Sign UpAdd the Helicone SDK to your LLM call code—just change the base URL to route all requests through Helicone. Supports OpenAI, Anthropic, and other major LLM providers.
Request logs appear immediately after integration with no extra config. Enable async logging in production to avoid affecting response speed.
View request volume, latency, token usage, and cost stats in the Helicone Dashboard. Group analysis by model, user, scenario to quickly identify anomalies.
Set cost alerts to notify when daily spending exceeds thresholds, avoiding huge bills from API key leaks.
Use Helicone's request replay to debug failures and compare prompt effects. Optimize model selection and prompt design based on historical data analysis.
Analyze causes of high-latency requests—possibly long prompts or inappropriate model choices. Optimization significantly improves user experience.
💡 Helicone AI is a software tool, not an AI model. To experience its full features, please visit the official website. You can also add it to your workflow below.
Ideal for developers who need to monitor and manage large language models (LLMs), especially those working on open-source LLM projects. ## How to Use 1. Visit the official website to download Helicone AI. 2. Install and configure it. 3. Connect to your LLM. 4. Start monitoring and analyzing.
Helicone AI is a free tool. Visit the official website for detailed pricing.
View pricing →| Tool | Rating | Pricing | Best For |
|---|---|---|---|
| Helicone AI ★ | 0/5 | Free | Code |
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