# Arize AI vs Relyable

Arize AI records 249,028 monthly visits with +3.2% month-over-month growth and Paid, Contact for Pricing pricing. Relyable records 3,451 monthly visits with -45.5% growth and Freemium, Paid pricing.

| Metric | [Arize AI](https://openaitools.app/tool/arize-com) | [Relyable](https://openaitools.app/tool/relyable) |
| :--- | :--- | :--- |
| Website URL | https://arize.com | https://relyable.ai |
| Categories | Large Language Models (LLMs), AI Agent, AI Monitor, AI Developer Tools | AI Testing, AI Monitor, AI Voice Assistants, AI Agent |
| Pricing Model | Paid, Contact for Pricing | Freemium, Paid |
| Monthly Visits | 249,028 | 3,451 |
| MoM Growth Rate | +3.2% | -45.5% |
| Primary Market | United States | United States |
| Direct Visits | 107,838 | 1,348 |
| Review Score | 4.6 | 4.7 |
| Saved Count | 1 | 0 |
| Supported Platforms | Website | Website |

## Arize AI

Arize is an AI engineering platform built for teams that run generative AI in production. It is split into two products: Arize AX, a managed environment for agent observability, evaluation, and experimentation, and Phoenix, an open-source tracing and evaluation library that teams can self-host when they need full data control. Both rely on OpenInference, the open-source semantic convention for generative AI tracing that the Arize team founded and that is built on OpenTelemetry.

The workflow follows three questions. Observe answers what an agent actually did by capturing every span, trace, and session; Evaluate answers whether quality is improving or regressing using span-level, trace-level, and session-level evals; Learn answers whether a proposed change will help by letting teams test prompts and harnesses before rollout. A datastore for GenAI traces (ADB) keeps data in open formats that connect to warehouses such as BigQuery, Databricks, and Snowflake, and an in-app AI engineering agent named Alyx surfaces issues and drafts review-ready fixes.

The platform integrates with dozens of models, frameworks, and tools, including OpenAI, Anthropic, Google, Amazon Bedrock, LangChain, LangGraph, LlamaIndex, CrewAI, and DSPy. Arize publishes compliance certifications including SOC 2 Type II, ISO 27001, PCI DSS, HIPAA, and GDPR, and supports cloud, hybrid, and self-hosted deployment.

**Pricing & Plans:** Arize uses a paid model with a free entry point: teams can start free or book a demo, while enterprise-scale usage, deployment options, and support are quoted through a contact-sales process. The open-source Phoenix project is free to self-host.

- **End-to-end tracing:** Capture spans, traces, and sessions across agents and LLM calls using OpenInference conventions built on OpenTelemetry, so instrumentation stays portable.
- **Scalable evaluation framework:** Run evaluations at span, trace, and session level to grade retrieval quality, tool use, and final answers across large production datasets.
- **Alyx AI engineering agent:** An in-product agent that inspects traces, diagnoses likely root causes, and proposes fixes that engineers can review before shipping.
- **Phoenix open-source toolkit:** Self-host the leading open-source tracing and eval tool when you need to keep trace data inside your own infrastructure.
- **Warehouse-native trace storage:** ADB stores traces in open formats that connect natively to BigQuery, Databricks, or Snowflake for joint analytics with business data.

**Strengths:** Covers the full loop of observe, evaluate, and improve rather than stopping at dashboards; Backed by OpenInference and OpenTelemetry standards, limiting vendor lock-in on trace formats; Strong enterprise posture with SOC 2, ISO 27001, HIPAA, and GDPR coverage plus self-hosting options; Integrates with a very wide set of models, frameworks, and agent SDKs

**Limitations:** Self-serve pricing is not published, so cost requires a sales conversation; The breadth of features can be overwhelming for small teams shipping their first LLM feature; Full value depends on disciplined instrumentation across the whole application

[Profile (Markdown)](https://openaitools.app/tool/arize-com.md)

## Relyable

Relyable was built by a team that develops voice agents and treats testing as a first-class part of shipping them. Rather than rely on human spot-checks, it uses AI to create personas and scenarios that mimic real callers — old and angry, young and confident, different accents, moods and goals — and then runs those conversations in parallel against your deployed agent. Each call is analysed automatically, so problems surface before a single real customer encounters them.

Evaluation is driven by a rubric you control. You can weight criteria such as end-to-end task completion, freedom from fabricated policy or pricing, stable customer sentiment, clean interruption handling, latency under a p95 target and appropriate out-of-scope handoff. Relyable tracks pass rates and seven-day trends for each criterion, giving a quantified picture of whether a change helped or hurt.

In production, the platform becomes a monitoring layer. Live calls are logged and scored in real time, and Relyable pages you only when a threshold is crossed — through Slack, email, PagerDuty, Opsgenie, Linear or a webhook. The company is headquartered in Melbourne, Australia, and is associated with NVIDIA Inception, ElevenLabs Grants and Microsoft for Startups.

**Pricing & Plans:** Relyable uses credit-based pricing where credits cover both simulated and live calls. Core is $500/month with 50,000 credits (up to 750 simulated calls and 10,000 live evaluations), and Premium is $1,000/month with 125,000 credits (up to 1,900 simulated calls and 25,000 live evaluations). Annual billing saves about 15%. Enterprise offers custom credit packages, regional compliance and dedicated support.

- **Automated conversation simulation:** Auto-generate test cases from your system prompt or define your own, then run hundreds of parallel simulated conversations with presets for accent, mood and goal.
- **Rubric-based evaluation:** Score every call against weighted, customisable criteria such as task completion, policy accuracy, sentiment, interruption handling and latency, with seven-day trend tracking.
- **Live production monitoring:** Every production call is silently logged and scored in real time, with alerts routed to Slack, email, PagerDuty, Opsgenie, Linear or webhooks when something drifts.
- **No-code platform integrations:** Connect Vapi, Retell or ElevenLabs agents in under five minutes using an API key, or route custom agents through the provided number and API.
- **Industry playbooks:** Hardware and industry templates for financial services, home services and real estate, including compliance, emergency-pathway and booking scenarios.

**Strengths:** Combines simulation, rubric-based evaluation and live monitoring in one platform.; Fast native integrations with Vapi, Retell and ElevenLabs using just an API key.; Rubric weighting and seven-day trend tracking turn voice agent quality into measurable numbers.; Alert routing to Slack, PagerDuty, Linear and webhooks fits existing on-call workflows.

**Limitations:** Pricing starts at $500/month, so it is a significant commitment for very small teams.; Native integrations currently center on Vapi, Retell and ElevenLabs; other platforms require the manual prompt-upload and call-routing workaround.; Evaluation quality still depends on how well you define your rubric and test cases.; Because it targets production voice agents, it is less relevant if you are only experimenting.

[Profile (Markdown)](https://openaitools.app/tool/relyable.md)

## Frequently Asked Questions

### How do Arize AI and Relyable compare in monthly traffic?

Arize AI has 249,028 monthly visits, while Relyable has 3,451. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Arize AI has a month-over-month growth rate of +3.2%; Relyable has -45.5%.

### How does pricing compare?

Arize AI: Paid, Contact for Pricing. Arize uses a paid model with a free entry point: teams can start free or book a demo, while enterprise-scale usage, deployment options, and support are quoted through a contact-sales process. The open-source Phoenix project is free to self-host. Relyable: Freemium, Paid. Relyable uses credit-based pricing where credits cover both simulated and live calls. Core is $500/month with 50,000 credits (up to 750 simulated calls and 10,000 live evaluations), and Premium is $1,000/month with 125,000 credits (up to 1,900 simulated calls and 25,000 live evaluations). Annual billing saves about 15%. Enterprise offers custom credit packages, regional compliance and dedicated support.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Weights & Biases (CoreWeave Forge)](https://openaitools.app/tool/prompts) | 315,624 | -80.2% | Freemium, Contact for Pricing, Free | Excels at experiment tracking and model registry workflows, but is less purpose-built for real-time LLM production observability. | [.md](https://openaitools.app/tool/prompts.md) |
| 2 | [Future AGI](https://openaitools.app/tool/future-agi) | 121,741 | -7.8% | Freemium, Usage-based | Build, simulate, evaluate and monitor self-improving AI agents | [.md](https://openaitools.app/tool/future-agi.md) |
| 3 | [Maxim AI](https://openaitools.app/tool/maxim-ai) | 121,351 | +10% | Contact for Pricing, Free Open Source | Evaluate, monitor, and govern your AI applications in production | [.md](https://openaitools.app/tool/maxim-ai.md) |
| 4 | [PromptLayer](https://openaitools.app/tool/promptlayer) | 85,899 | -4.6% | Free Trial, Contact for Pricing | Focuses heavily on prompt management and versioning control, whereas Arize prioritizes end-to-end tracing and ML observability. | [.md](https://openaitools.app/tool/promptlayer.md) |
| 5 | [Confident AI](https://openaitools.app/tool/confident-ai) | 83,400 | -3.3% | Freemium, Paid, Contact for Pricing | Standardize LLM evaluation, observability, and red teaming across your whole org | [.md](https://openaitools.app/tool/confident-ai.md) |
| 6 | [Cekura](https://openaitools.app/tool/cekura) | 73,228 | -18.9% | Contact for Pricing | Automated QA, simulation and observability for voice and chat AI agents | [.md](https://openaitools.app/tool/cekura.md) |
| 7 | [LangWatch](https://openaitools.app/tool/langwatch) | 52,098 | +73% | Contact for Pricing | Agent observability, evals and governance for AI platform teams | [.md](https://openaitools.app/tool/langwatch.md) |
| 8 | [Openlayer](https://openaitools.app/tool/openlayer) | 48,415 | -6.4% | Freemium, Contact for Pricing | AI governance, testing, and observability for regulated enterprises | [.md](https://openaitools.app/tool/openlayer.md) |
| 9 | [Latitude](https://openaitools.app/tool/latitude) | 48,210 | -30.6% | Freemium, Open Source, Enterprise | Open-source observability that finds your AI agent's failures — and fixes them | [.md](https://openaitools.app/tool/latitude.md) |
| 10 | [Agenta](https://openaitools.app/tool/agenta) | 45,760 | +29.5% | Freemium | Open-source workspace for building, evaluating and shipping AI agents | [.md](https://openaitools.app/tool/agenta.md) |

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Source: https://openaitools.app/compare/arize-com-vs-relyable

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