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Helicone

AI gateway and observability platform for reliable LLM applications

Helicone provides an AI gateway and observability platform for teams building LLM applications. Developers can route requests across providers, track usage and costs, debug sessions, manage prompts and datasets, and configure reliability features such as caching, rate limits, and automatic fallbacks.

HEHeliconeProduct screenshot pending
Best for
Developers operating production LLM applications
Pricing signal
Free
Primary category
Developer tools
Last verified
Jul 30, 2026

The decision

Should Helicone make your shortlist?

Start with the job, the team, and the constraints. Product fit becomes much clearer when those three line up.

Strongest fit

Who it is built for

  • Developers operating production LLM applications
  • Teams using multiple model providers
  • Organizations monitoring LLM cost and reliability
Practical use cases

Jobs it can take on

  • Route LLM requests across supported providers and models
  • Track request-level cost, usage, errors, and latency
  • Debug multi-step agent and conversation sessions
Before you choose

Know the tradeoffs

  • The free Hobby plan is limited to 10,000 requests, 1 GB of storage, one seat, and seven days of retention.
  • Paid plans include usage-based charges in addition to the listed subscription fee.

Inside the product

What you can actually do with it.

The core product capabilities, grouped around the work they enable.

AI Gateway

The gateway provides a unified API for more than 100 models with automatic fallbacks, load balancing, caching, and rate limits.

LLM observability

Helicone logs and analyzes requests, sessions, users, costs, errors, and performance metrics for AI applications.

Prompt and testing tools

Teams can manage prompts, datasets, scores, and playground testing within the platform.

Typical workflow

Developers configure provider keys or billing credits, then send requests through Helicone's gateway or integrate its observability tools. Helicone records the resulting requests and exposes dashboards, alerts, reports, and debugging tools for ongoing optimization.

Plans and official links

Plans and accessFree.

See the entry price, free access options, company details, and direct vendor destinations in one place.

Choosing for a real workflow?

Make the tool work with the rest of your operation.

We map the workflow, connect existing systems, choose what to buy, and build what is missing.

Discuss your workflow