Arize Phoenix

Arize Phoenix

Arize AI
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About

Antaeus is a semantic policy engine for developers who need to evaluate human-written rules about language, context, intent, or exceptions. Its open-source Go core and command-line interface load YAML or JSON policy artifacts, validate them against versioned schemas, and run named regression cases. The evaluator returns explicit allow, review, deny, or failure outcomes with policy identity and decision evidence, leaving authentication, authorization, and consequential actions to the application. Developers can run a deterministic, credential-free local workflow or use the experimental hosted dashboard and API to manage policies and evaluate inputs. An experimental OpenAI evaluator is also available. Antaeus is an early-stage project; hosted service capacity is shared and has no production SLA.

About

Phoenix is an open-source observability library designed for experimentation, evaluation, and troubleshooting. It allows AI engineers and data scientists to quickly visualize their data, evaluate performance, track down issues, and export data to improve. Phoenix is built by Arize AI, the company behind the industry-leading AI observability platform, and a set of core contributors. Phoenix works with OpenTelemetry and OpenInference instrumentation. The main Phoenix package is arize-phoenix. We offer several helper packages for specific use cases. Our semantic layer is to add LLM telemetry to OpenTelemetry. Automatically instrumenting popular packages. Phoenix's open-source library supports tracing for AI applications, via manual instrumentation or through integrations with LlamaIndex, Langchain, OpenAI, and others. LLM tracing records the paths taken by requests as they propagate through multiple steps or components of an LLM application.

Platforms Supported

Windows Not Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers building custom content moderation, marketplace listing policies, and applications that evaluate human-written business rules.

Audience

AI engineers seeking a tool to enhance the observability and performance of their AI and LLM applications

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

Free
The local Go engine is available under the Apache-2.0 license at no charge. Hosted usage includes a shared free allowance of up to 100 completed decisions per day, subject to shared capacity and without a production SLA. Paid usage is available through credit purchases starting at $10; hosted evaluation charges are usage-based.
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Antaeus
antaeus.io

Company Information

Arize AI
United States
docs.arize.com/phoenix

Alternatives

Alternatives

Leapter

Leapter

Leapter GmbH
Opik

Opik

Comet
Logfire

Logfire

Pydantic

Categories

Categories

AI Observability Supported
LLM Evaluation Supported
Semantic Layer Supported
Telemetry Supported

Integrations

OpenAI Supported
APIFuzzer Not Supported
Amazon Bedrock Not Supported
CoLab Not Supported
Codestral Not Supported
Codestral Mamba Not Supported
CrewAI Not Supported
Guardrails AI Not Supported
JavaScript Not Supported
LangChain Not Supported
LlamaIndex Not Supported
Ministral 3B Not Supported
Mistral 7B Not Supported
Mistral NeMo Not Supported
Mixtral 8x22B Not Supported
Mixtral 8x7B Not Supported
OpenTelemetry Not Supported
Python Not Supported
Vercel Not Supported

Integrations

OpenAI Supported
APIFuzzer Supported
Amazon Bedrock Supported
CoLab Supported
Codestral Supported
Codestral Mamba Supported
CrewAI Supported
Guardrails AI Supported
JavaScript Supported
LangChain Supported
LlamaIndex Supported
Ministral 3B Supported
Mistral 7B Supported
Mistral NeMo Supported
Mixtral 8x22B Supported
Mixtral 8x7B Supported
OpenTelemetry Supported
Python Supported
Vercel Supported
Claim Antaeus and update features and information
Claim Antaeus and update features and information
Claim Arize Phoenix and update features and information
Claim Arize Phoenix and update features and information