# Arize AI vs Fillout Arize AI records 249,028 monthly visits with +3.2% month-over-month growth and Paid, Contact for Pricing pricing. Fillout records 3,923,917 monthly visits with -9.7% growth and Freemium pricing. | Metric | [Arize AI](https://openaitools.app/tool/arize-com) | [Fillout](https://openaitools.app/tool/fillout-com) | | :--- | :--- | :--- | | Website URL | https://arize.com | https://www.fillout.com | | Categories | Large Language Models (LLMs), AI Agent, AI Monitor, AI Developer Tools | AI Forms, AI Quiz Generator, AI Signature Generator, AI PDF | | Pricing Model | Paid, Contact for Pricing | Freemium | | Monthly Visits | 249,028 | 3,923,917 | | MoM Growth Rate | +3.2% | -9.7% | | Primary Market | United States | United States | | Direct Visits | 107,838 | 2,306,833 | | Review Score | 4.6 | 4.4 | | Saved Count | 1 | 12 | | 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) ## Fillout Fillout is a no-code platform for building forms, surveys, quizzes, and payment or scheduling pages. You can start from a description and let the built-in Zite AI assemble a ready-to-publish form in your brand, or drag and drop fields manually. Every submission is stored in a structured database you can filter, analyze, and connect to other tools. Beyond basic data collection, Fillout adds intelligent routing, login-based forms that let respondents edit their own answers, digital signatures, and native integrations with 50+ apps. Branding is fully controllable, including custom domains, white-labeling, and embeds as popups, sliders, or full-screen pages. A large number of organizations use Fillout for secure data intake, and the service advertises SOC II Type 2 compliance plus AES-256 encryption. A free tier covers casual use, while paid plans unlock advanced logic, higher limits, and team features. **Pricing & Plans:** Freemium. A free plan covers basic forms and submissions, with paid tiers for advanced logic, higher limits, file uploads, payments, and team collaboration. - **AI form builder (Zite):** Describe the form you need in plain language and Zite generates a branded form with logic, file uploads, and payments. - **Logic and workflows:** Add conditional logic, intelligent routing, and multi-step workflows to automate what happens after each response. - **Editable and secure submissions:** Respondents can log in to update their answers, and forms can be restricted to internal users only. - **Branding and embeds:** Use custom themes, fonts, logos, custom CSS, your own domain, and embed forms as popups, sliders, or full-screen pages. - **50+ integrations and analytics:** Send responses to spreadsheets, CRMs, and other tools, then review and collaborate on results with flexible views. **Strengths:** AI-assisted building makes first drafts fast; Deep logic, workflows, and 50+ integrations; Strong branding controls including white-label and custom domains; SOC II Type 2 compliance and AES-256 encryption **Limitations:** Advanced features require paid plans; Feature depth can be overwhelming for simple one-off forms; Popular templates see heavy competition for the same look [Profile (Markdown)](https://openaitools.app/tool/fillout-com.md) ## Frequently Asked Questions ### How do Arize AI and Fillout compare in monthly traffic? Arize AI has 249,028 monthly visits, while Fillout has 3,923,917. 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%; Fillout has -9.7%. ### 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. Fillout: Freemium. Freemium. A free plan covers basic forms and submissions, with paid tiers for advanced logic, higher limits, file uploads, payments, and team collaboration. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [forms.app](https://openaitools.app/tool/forms-app) | 987,157 | -11.2% | Freemium, Paid | Broader template library and multi-channel sharing features, but less flexible multi-page layout customization than Fillout. | [.md](https://openaitools.app/tool/forms-app.md) | | 2 | [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) | | 3 | [BlockSurvey](https://openaitools.app/tool/block-survey) | 302,480 | -14.9% | Freemium, Paid | Superior privacy-first encryption and secure data handling, but more restrictive workflow automation and styling capabilities. | [.md](https://openaitools.app/tool/block-survey.md) | | 4 | [Makeform](https://openaitools.app/tool/makeform) | 160,692 | -10.8% | Freemium | Faster AI form generation with built-in logic, but fewer advanced database integration and multi-page routing features. | [.md](https://openaitools.app/tool/makeform.md) | | 5 | [Future AGI](https://openaitools.app/tool/future-agi) | 121,741 | -7.8% | Freemium, Usage-based | Includes integrated guardrails and simulation tools, but is less mature for large-scale enterprise production telemetry monitoring. | [.md](https://openaitools.app/tool/future-agi.md) | | 6 | [Maxim AI](https://openaitools.app/tool/maxim-ai) | 121,351 | +10% | Contact for Pricing, Free Open Source | Features strong testing and prompt evaluation tools, though its monitoring interface is less oriented towards massive telemetry streams. | [.md](https://openaitools.app/tool/maxim-ai.md) | | 7 | [Opinion Stage AI](https://openaitools.app/tool/opinion-stage-ai) | 120,996 | +2.5% | Contact for Pricing | AI quiz, poll and survey builder that turns traffic into leads | [.md](https://openaitools.app/tool/opinion-stage-ai.md) | | 8 | [FormHug](https://openaitools.app/tool/formhug) | 92,118 | -4.8% | Freemium, Free | Includes unique MCP server support and fast AI form generation, but less mature ecosystem and third-party integrations. | [.md](https://openaitools.app/tool/formhug.md) | | 9 | [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) | | 10 | [Confident AI](https://openaitools.app/tool/confident-ai) | 83,400 | -3.3% | Freemium, Paid, Contact for Pricing | Offers comprehensive LLM evaluation and unit testing via DeepEval, but lacks Arize's deep production monitoring infrastructure. | [.md](https://openaitools.app/tool/confident-ai.md) | --- Source: https://openaitools.app/compare/arize-com-vs-fillout-com More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)