Best Helicone Alternatives in 2026

30 AI tools that can replace Helicone, ranked by how much of what Helicone does they cover. The percentage is a match score, not a popularity score.

Replacing: Helicone — Helicone is an AI gateway and LLM observability platform that routes, debugs and analyzes Input: data · Output: data
1
Langfuse is an open-source platform for observability and evaluation of AI agents and LLM applications.
Input: text, data · Output: data
Free planFrom $29/moAPITeams
AI Monitor
2
Arize Phoenix is an open-source platform for AI observability and evaluation, built by Arize.
Input: text, data · Output: data
Free planFrom $50/moAPITeams
AI Monitor
3
Datadog is a cloud-scale observability and security service that brings infrastructure metrics, application traces, logs, security signals and user experience data into one place.
Input: data, code · Output: data
Free planFrom $15/moAPIMobile appTeams
AI Monitor
4
New Relic AI is a generative assistant built into the New Relic observability platform that lets people ask questions about their systems in everyday language.
Input: text, data, code · Output: text, code
Free planTeams
AI Monitor
5
Cisco AI Canvas creates a unified workspace where IT operations teams handle incidents across networking, security, collaboration, and observability domains simultaneously
Input: text, data · Output: text, data
Free planTeams
AI Monitor

Can it really replace Helicone? Vote on each alternative — no account needed. Votes gently reorder the list; they never change the match score.

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Best Helicone alternatives by goal

Every goal has its own ranked list — the match score is recomputed for that job alone.

At a glance: top Helicone alternatives

ToolMatchInputOutputPricingFree planRatingCategory
Langfuse 97% text, data data From $29/mo Yes — AI Monitor
Arize Phoenix 90% text, data data From $50/mo Yes — AI Monitor
Datadog 88% data, code data From $15/mo Yes — AI Monitor
New Relic AI 88% text, data, code text, code Freemium Yes — AI Monitor
Cisco AI Canvas 74% text, data text, data Freemium Yes — AI Monitor
Modulate 74% audio text, data From $30,000/mo Yes — AI Monitor

Frequently asked

What is the best Helicone alternative?
Langfuse (97% match) is the closest alternative to Helicone: Langfuse is an open-source platform for observability and evaluation of AI agents and LLM applications. Arize Phoenix (90% match) and Datadog (88% match) come next.
Is there a free alternative to Helicone?
Yes. 25 of the 30 ranked alternatives have a free plan or free tier, including Langfuse, Arize Phoenix, Datadog.
What is the best Helicone alternative for software development?
Respan ranks first for software development at 92% match. See the full list of Helicone alternatives for Software Development.
How is the match percentage calculated?
It measures how much of Helicone's job a tool can take over: shared core category, how many of the same use cases it covers and how similar its feature set is. Popularity and ratings never change the percentage; they only break ties in the order. Lists are recomputed nightly and reviewed by editors for the most-visited tools.

How this list is ranked

The match score measures how much of Helicone's job each tool can take over: shared core category, how many of the same use cases it covers, and how similar its feature set is. Popularity and ratings do not change the score; they only break ties in the order.

Lists are recomputed nightly from the live catalog and reviewed by our editors for the most-visited tools. Sponsored placements are marked and sit outside the ranking.