Helicone AIAll-in-one observability platform to monitor, debug, and improve production LLM apps.

4.7 (6)

Reviewed by Daniel Nikulshyn·Updated July 2026

Overview

Helicone AI is a developer-focused observability platform built specifically for applications powered by large language models. It captures requests, responses, costs, and latency across providers, giving engineering teams a unified view of how their LLM features behave in production. Beyond logging, Helicone offers tools for debugging prompts, tracing multi-step agent workflows, running evaluations, and tracking user-level usage. Teams can identify regressions, control spend, and iterate on prompts with data rather than guesswork. It integrates with popular model providers and frameworks through a lightweight proxy or async logging, making it straightforward to add to existing stacks without major code changes.

Key features

Request and response logging
Cost and token usage tracking
Prompt management and versioning
Agent and session tracing
Custom evaluations and dashboards
User and rate-limit analytics

Pricing

Model: Free
Category: Observability
Rating: 4.7 / 5 (6)

Use cases

Monitoring LLM Apps

Monitor production LLM apps to ensure reliability and performance.

Debugging AI Issues

Debug and resolve issues in LLM applications to improve overall quality.

Analyzing App Behavior

Analyze LLM app behavior to identify areas for improvement and optimization.

Optimizing Production Apps

Improve and optimize production LLM apps for better reliability and efficiency.

Pros & Cons

Pros

Quick integration via proxy or async SDK
Unified view of cost, latency, and usage
Supports multiple LLM providers
Useful prompt and agent debugging tools
Open-source option available

Cons

Proxy setup may add a network hop
Advanced features require paid tiers
Primarily aimed at developers, not non-technical users

Battle record

Across 4 battles in the Pantheon.

1st

2nd

3rd

Last 4 battles

Reviews

4.7

Average from 6 ratings.

Beatriz Costa

Apr 2, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is agent and session tracing — handled better than most — and quick integration via proxy or async SDK. Advanced features require paid tiers is my one real gripe. Worth the time if this is your use case.

Carlos Mendoza

Jan 24, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is user and rate-limit analytics — handled better than most — and open-source option available. Advanced features require paid tiers is my one real gripe. Worth the time if this is your use case.

Diego Fernández

Jan 9, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is custom evaluations and dashboards — handled better than most — and useful prompt and agent debugging tools. Primarily aimed at developers, not non-technical users is my one real gripe. Worth the time if this is your use case.

Gunnar Eriksson

Jan 3, 2026

Use it every day

Honestly didn't expect to like it this much. Request and response logging is exactly what I needed, and supports multiple LLM providers. I do wish advanced features require paid tiers, but I reach for it almost every day now and it just clicks.

George Papadakis

Aug 31, 2025

Solid for our team

We rolled this out across the team last quarter and useful prompt and agent debugging tools. User and rate-limit analytics fits neatly into how we already work, and user and rate-limit analytics removed a step we used to do by hand. but it has held up under daily use.

Hannah Goldberg

May 30, 2025

Compared a few options

Evaluated this against two competitors. Where it wins: user and rate-limit analytics and useful prompt and agent debugging tools. On balance the feature set — especially prompt management and versioning — justifies the 5 stars for our use case.

Q&A

Is there a free trial or open‑source version available?

Yes, Helicone offers a 7‑day free trial with no credit card required, and an open‑source option is also provided for developers who prefer self‑hosting.

Asked by Hasan Demir · May 29, 2026

How does Helicone help control costs and monitor usage in production?

It logs each request’s token count, cost, and latency, providing dashboards and user‑level analytics that let teams track spend, set rate limits, and spot regressions.

Asked by Carlos Mendoza · May 23, 2026

What integration options does Helicone AI offer for existing LLM applications?

Helicone can be added via a lightweight proxy that routes traffic or through an async SDK, supporting major LLM providers and frameworks with minimal code changes.

Asked by Jarrah Whitlock · May 17, 2026

Ask a question

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