Helicone

Helicone combines an AI model gateway with request-level observability for applications using multiple providers. It is most useful to teams that need routing, tracing, and cost control in one layer, especially when self-hosting matters. The broad feature set is balanced by a maintenance-mode status that makes long-term platform strategy an important part of the decision.

Overview

Helicone lets applications reach more than 100 models through the OpenAI SDK by changing the model name, giving developers a common access path across providers. Its gateway adds smart load balancing, automatic failovers, and response caching, which can reduce the operational work of coordinating provider endpoints.

The company says it was acquired by Mintlify and that services remain live in maintenance mode. Security updates, new models, and bug and performance fixes continue, but teams starting a strategic, long-lived deployment should treat the maintenance posture as a meaningful risk rather than assuming an expanding product roadmap.

Deployment is available through the hosted web service, an API, or customer infrastructure. Single-click deployment and a production-ready Helm chart support self-hosting, while Helicone states that its cloud is SOC 2, HIPAA, and GDPR compliant. The project presents itself as open source and accepts community contributions.

Key features

Real-time request logging and visualizations of multi-step LLM interactions are aimed at debugging rather than merely recording traffic. Following a chain of calls can help a team isolate error root causes and understand where an application is failing or becoming expensive.

Provider integrations include OpenAI, Anthropic, Azure, LiteLLM, Anyscale, Together AI, and OpenRouter. Cost and token tracking, LLM evaluations, prompt management, agent tracing, and retrieval tracing cover the main inspection needs of production AI systems. The LangGraph integration adds visibility into LLM calls, session tracking, performance metrics, and cost monitoring for graph-based workflows.

An API cost calculator covers more than 300 models and providers, useful when comparing model choices before usage accumulates. Support for routing and observability in the same service is a strength for teams that would otherwise assemble separate gateway and monitoring tools, although maintenance mode reduces confidence for buyers seeking an actively expanding platform.

Pricing

The free Hobby plan is suitable for a small proof of concept, but one seat, one organization, 1 GB of storage, and seven-day retention sharply limit collaborative or historical analysis. Pro is the practical entry point for a working team: it removes the seat cap and raises ingestion substantially, while retaining only one organization and one month of data. Team is priced for organizations needing multiple workspaces, higher throughput, longer retention, and stated SOC-2 and HIPAA coverage. Enterprise fits buyers requiring SAML, on-premises control, unlimited organizational scale, or forever retention.

Helicone advertises a seven-day free trial with no credit card required. Paid usage starts at $79 a month on Pro, with usage-based charges beyond the included 10,000 requests.

Platforms

Helicone runs through an API and web interface, and it can be self-hosted. The Helm chart and single-click deployment option make infrastructure-controlled installations more realistic than a purely hosted service. Cloud customers receive the compliance commitments Helicone states for its service; Enterprise adds on-premises deployment.

Who it's for

Choose Helicone if your application spans several model providers and you want failover, load balancing, caching, tracing, and cost visibility behind a common gateway. It also suits teams building LangGraph workflows or requiring self-hosting alongside an open-source project.

It is a less comfortable choice for a new core platform when you expect an actively developing product, frequent feature expansion, or a long roadmap. The maintenance-mode status should be evaluated alongside your requirements for future integrations and support.

Pros and cons

Pros

• Multi-provider gateway: access to more than 100 models plus load balancing, failover, and caching simplifies provider diversification.
• Deep request visibility: real-time logs, multi-step traces, evaluations, and root-cause analysis support production debugging.
• Flexible deployment: hosted API and web access sit alongside self-hosting through single-click deployment or Helm.
• Broad cost tooling: token tracking and a calculator covering more than 300 models and providers help control spend.

Cons

• Maintenance mode: ongoing fixes are stated, but the status is a material concern for a new long-term dependency.
• Constrained free tier: one seat, one organization, 1 GB storage, and seven-day retention are limiting beyond an individual prototype.
• High Team price: $799 a month is a substantial step above Pro for organizations and throughput.
• Usage-based paid billing: Pro and Team include 10,000 requests, then charge according to usage, making spend dependent on traffic.

Alternatives

AI Nazar is a free, open-source API, self-hosted, and web option for readers who prioritize an MIT-licensed SDK and dashboard without a paid trial.

API Analytics suits users wanting a free self-hosted API analytics service with up to 1 million stored requests per user.

Apirelio is a lower-cost web alternative, with a 14-day trial and a 19.00 USD monthly Growth plan that includes 2 million events per month.

BetterMeter is a simpler freemium API and web choice with 30-day event retention on its free plan.

Clavio is aimed at web-based dataset analysis and charting rather than an LLM gateway.

KeepRouter is a freemium API and web router offering free best-effort testing with no per-token charge.

Langfuse is a freemium API, self-hosted, and web observability alternative with a 50,000-unit monthly Hobby allowance and 30 days of data access.

Moesif is a freemium API analytics option with self-hosting and web access, plus a 14-day trial.

Verdict

Helicone is a strong fit for teams that need one gateway for multi-provider model access and detailed tracing, cost, and request analysis, with self-hosting as an option. Its main reason to choose it is the breadth of routing and observability in a single layer. Look elsewhere if an actively expanding product roadmap is essential, or if the Hobby limits and Pro-to-Team price jump do not match your scale.