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Alternatives · 2026

The best Atatus LLM Observability alternatives

The rest of Best Llm Monitoring, in this site's order: each with what it costs, where it runs and its record score.

1
W&B Weave

Weave suits teams building or operating production AI agents that need tracing, evaluations, interaction monitoring, or prompt comparisons.

iPhone & iPadWebWindows+4 $60 a month Record6.2 Visit
2
Opik

Opik suits teams developing applications or agents that call an LLM and need to inspect, evaluate, and monitor their behavior.

WebWindowsMac+3 $19 a month Record6.1 Visit
3
Future AGI AI Evaluation SDK

The platform is presented for startup and enterprise teams building and operating AI agents.

WebWindowsMac+3 $250 a month Record6.0 Visit
4
Langfuse

Langfuse suits teams building AI agent applications that need tracing, prompt management, and evaluation tools.

WebLinuxAPI+1 $29 a month Record5.7 Visit
5
LangWatch

LangWatch suits AI teams working on agents, including developers, product owners, QA, and domain experts involved in evaluation workflows.

WebMacLinux+2 €29 a month Record5.7 Visit
6
OpenLIT

OpenLIT suits developers who want to observe LLM applications, prompts, evaluations, and costs.

WebWindowsMac+3 Free plan Record5.6 Visit
7
Agenta

Agenta suits teams that want to create and operate AI agents across work tools, with cloud or self-hosted deployment options.

WebAPISelf-hosted $29 a month Record5.5 Visit
8
LangSmith

LangSmith suits teams developing AI agents that need evaluation, prompt tools, tracing, and production monitoring.

WebWindowsMac+3 $39 usage-based Record5.3 Visit
9 WebWindowsMac+2 — Record5.2 Visit
10
Helicone

It suits teams building or operating AI applications that need provider routing, request tracing, or cost visibility.

WebAPISelf-hosted $79 usage-based Record5.1 Visit
11 WebAPISelf-hosted $40 a month Record5.0 Visit
12
Braintrust

Braintrust is intended for teams running AI agents in production, from early-stage projects to enterprise deployments.

WebAPISelf-hosted $249 a month Record5.0 Visit
13 WebAPISelf-hosted Free plan Record5.0 Visit
14
Laminar

Laminar suits teams building AI agents that need to trace model and tool activity, investigate runs, or evaluate changes against datasets.

WebAPISelf-hosted $30 a month Record4.8 Visit
15 APISelf-hosted Free plan Record4.8 Visit
16
Portkey

Portkey suits teams building or operating applications that use multiple AI models and need routing, activity monitoring, and prompt management.

WebAPISelf-hosted $49 a month Record4.7 Visit
17
Arize AX

Arize AX suits teams working to observe, evaluate, and improve AI agents in production.

WebAPISelf-hosted $50 a month Record4.5 Visit
18
Galileo

Galileo is designed for engineers, product managers, and subject matter experts building AI applications.

WebAPISelf-hosted $100 a month, billed yearly Record4.5 Visit
19
Arize Phoenix

Phoenix suits teams that need to inspect AI application traces and compare evaluation results across versions.

WebAPISelf-hosted Free plan Record4.4 Visit
20
HoneyHive

It suits AI platform teams, AI engineers, domain experts, and risk and governance teams that need production agent visibility.

WebAPISelf-hosted Free plan Record4.4 Visit
21 WebWindowsMac+1 Free plan Record3.4 Visit
22 Web Free plan Record2.9 Visit
23 Web Free plan Record2.8 Visit
24 Web Free plan Record2.8 Visit