# Perplexity vs 21X (formerly Structurely)

Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. 21X (formerly Structurely) records 13,453 monthly visits with +367.9% growth and Contact for Pricing pricing.

| Metric | [Perplexity](https://openaitools.app/tool/perplexity-ai) | [21X (formerly Structurely)](https://openaitools.app/tool/structurely-com) |
| :--- | :--- | :--- |
| Website URL | https://www.perplexity.ai | https://structurely.com |
| Categories | AI Search Engine, AI Answer, AI Copilot, Large Language Models (LLMs) | AI Sales, AI Cold Calling, AI Scheduling, AI Text Message Generator |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 88,310,223 | 13,453 |
| MoM Growth Rate | -3.7% | +367.9% |
| Primary Market | United States | United States |
| Direct Visits | 63,320,727 | 5,948 |
| Review Score | 4.7 | 4.3 |
| Saved Count | 185 | 2 |
| Supported Platforms | Website | Website |

## Perplexity

Perplexity is an AI-native answer engine and autonomous research platform designed to replace traditional keyword search and fragmented browser tab workflows. Instead of returning a ranked list of blue links, Perplexity interprets complex natural-language queries, crawls live web indexes, academic databases, financial filings, and social discussions in real time, and synthesizes direct, structured answers anchored by numbered inline citations. Beyond conversational search, the platform has evolved into a broader agentic ecosystem encompassing Perplexity Computer for autonomous multi-step tasks and the Comet AI browser assistant.

Under the hood, Perplexity orchestrates its proprietary web-grounded Sonar model family alongside frontier third-party reasoning models—allowing paid subscribers to route queries through Claude Opus 4 and Sonnet 4, OpenAI's o3-pro and GPT series, or Google's Gemini models, or run parallel evaluations via Model Council. Its Deep Research mode autonomously decomposes intricate questions, conducts dozens of iterative searches across hundreds of primary sources, and compiles exhaustive, exportable briefing reports in minutes. Users can also organize ongoing projects inside Perplexity Spaces, which fuse uploaded private documents (PDFs, CSVs, docs) with live web grounding and custom system instructions.

Perplexity serves an expansive audience ranging from students and journalists to equity analysts, legal researchers, and software engineers. Individual users can rely on the free tier for everyday fact-checking, step up to Perplexity Pro ($20/month) for daily deep research and model switching, or subscribe to Perplexity Max ($200/month) for uncapped high-compute agentic runs. Organizations adopt Enterprise Pro ($40/seat/month) and Enterprise Max ($325/seat/month) for SOC 2 compliance, zero data training guarantees, and internal knowledge connectors, while developers integrate real-time grounded citations into custom software via the Sonar REST API.

**Pricing & Plans:** Offers a permanent Free tier with unlimited Quick Searches, 3 Pro Searches per day, and 1 Deep Research query per month; Perplexity Pro costs $20/month ($200/year) and Perplexity Max costs $200/month ($2,000/year) for individuals. Team plans start at $40/seat/month ($400/seat/year) for Enterprise Pro and $325/seat/month for Enterprise Max, alongside usage-based Sonar API billing.

- **Deep Research Autonomous Reports:** Executes multi-step iterative web and document research across hundreds of sources, cross-checking facts and generating structured, citation-backed analytical reports that can be exported as PDFs or shared as interactive Perplexity Pages.
- **Multi-Model Routing & Model Council:** Lets Pro and Max subscribers switch dynamically between Perplexity's in-house Sonar models and top external models (including Claude 4, o3-pro, and Gemini) or compare multi-model reasoning outputs side by side.
- **Perplexity Spaces & Hybrid RAG:** Provides dedicated project workspaces where users upload local PDFs, spreadsheets, and text files, configure custom assistant instructions, and run queries that combine private document retrieval with live internet search.
- **Perplexity Computer & Comet Assistant:** Extends Perplexity from passive Q&A into agentic execution, turning high-level user requests into completed workflows, multi-tab browser actions, and automated data synthesis via the Comet ecosystem.
- **Sonar Web-Grounded Developer API:** Exposes Sonar, Sonar Pro, Sonar Reasoning Pro, and Sonar Deep Research over standard HTTP endpoints so developers can embed low-latency, live-cited web intelligence directly into third-party applications.

**Strengths:** Every generated statement links directly to numbered, verifiable web or document sources, drastically reducing ungrounded LLM hallucinations.; Deep Research mode delivers comprehensive, multi-page synthesis reports at a fraction of the time required for manual desk research.; Broad model optionality lets subscribers use Sonar, Claude, OpenAI, and Gemini models under a single $20/month subscription.; Focused search scopes (Academic, Finance, Web, Social) and Spaces allow clean separation between general browsing and domain-specific knowledge work.

**Limitations:** The Free tier is tightly restricted to 3 Pro Searches per day and just 1 Deep Research query per month with no manual model selection.; Power users requiring heavy agentic Computer runs or uncapped o3-pro/Opus-level research must jump from $20/month Pro to the steep $200/month Max tier.; Synthesized summaries can still inherit inaccuracies if underlying top-ranked web sources contain outdated or biased reporting.

[Profile (Markdown)](https://openaitools.app/tool/perplexity-ai.md)

## 21X (formerly Structurely)

21X, previously known as Structurely, is a conversational AI platform for automating the conversations that drive revenue and customer experience. It covers inbound and outbound voice, two-way SMS, RCS, email and chat from a single agent builder, so a mortgage lender, real estate team or home services company can qualify leads, answer routine questions and keep every follow-up moving without expanding a call centre.

The platform is organised around a four-step flow: connect the tooling that captures inbound calls and maximises outbound contact rates; converse with fine-tuned AI that sells, overcomes objections, follows up and handles requests; take action by booking appointments, scheduling callbacks, transferring calls and extracting insights; and sync everything back by dispositioning conversations and updating your CRM automatically. Because actions and dispositions flow into existing systems, AI-handled conversations appear in the same pipelines your team already reports on.

Commercial terms combine a platform fee with usage-based metering in tokens, so cost scales with actual activity rather than idle seat licences. Voice usage runs as low as $0.07 per minute with your own carrier (BYOC), SMS as low as $0.02 per message and AI email as low as $0.02 per email. Three tiers are offered — Small Team, Large Team and Enterprise/Build Your Own — with the top tier adding custom SLAs, isolated infrastructure, SSO/SAML, white-label or headless deployment and dedicated AI engineering support. The company is headquartered in Aspen, Colorado.

**Pricing & Plans:** Platform fee plus usage-based pricing. No seat licences; you pay for the platform and for activity metered in tokens. Voice from about $0.07 per minute (BYOC), SMS from about $0.02 per message, AI email from about $0.02 per email, with volume discounts on higher tiers. Three plans — Small Team, Large Team and Enterprise / Build Your Own — are quoted via sales; a demo AI call is offered before you commit.

- **Inbound and outbound AI voice:** AI agents handle inbound calls and run proactive outbound campaigns across voice, SMS, email and chat, 24/7, without adding headcount.
- **Multi-channel conversation routing:** Agents qualify, answer, transfer, schedule, escalate and route each conversation based on intent, context and your business rules.
- **Action taking, not just talking:** Book appointments, schedule callbacks, execute live transfers to human reps, trigger workflows and capture documents and signatures automatically.
- **Automatic dispositions and CRM sync:** Conversations are dispositioned automatically, CRM records are updated, and customer data syncs back into your existing tools and workflows.
- **AI Power Dialer for Salesforce:** Launch AI and human dialing campaigns directly from Salesforce with call screening, live transfers and performance reporting.
- **Agent builder with industry templates:** Build agents with prebuilt industry templates for mortgage, real estate, life insurance, home services, private aviation and more.

**Strengths:** Handles voice, SMS, RCS, email and chat in one platform rather than separate point tools; Automatic dispositions and CRM sync keep AI conversations inside existing reporting; No per-seat licensing; cost tracks actual conversation volume; Prebuilt industry agents for mortgage, real estate, insurance, home services and more

**Limitations:** Platform fee is not published, so you must talk to sales to model total cost; Usage is metered in tokens, making spend harder to forecast than flat per-seat pricing; Initial setup of agents, telephony, A2P registration and workflows requires onboarding effort; Advanced capabilities like SSO/SAML, dedicated infrastructure and white labeling are Enterprise-only

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

## Frequently Asked Questions

### How do Perplexity and 21X (formerly Structurely) compare in monthly traffic?

Perplexity has 88,310,223 monthly visits, while 21X (formerly Structurely) has 13,453. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Perplexity has a month-over-month growth rate of -3.7%; 21X (formerly Structurely) has +367.9%.

### How does pricing compare?

Perplexity: Freemium. Offers a permanent Free tier with unlimited Quick Searches, 3 Pro Searches per day, and 1 Deep Research query per month; Perplexity Pro costs $20/month ($200/year) and Perplexity Max costs $200/month ($2,000/year) for individuals. Team plans start at $40/seat/month ($400/seat/year) for Enterprise Pro and $325/seat/month for Enterprise Max, alongside usage-based Sonar API billing. 21X (formerly Structurely): Contact for Pricing. Platform fee plus usage-based pricing. No seat licences; you pay for the platform and for activity metered in tokens. Voice from about $0.07 per minute (BYOC), SMS from about $0.02 per message, AI email from about $0.02 per email, with volume discounts on higher tiers. Three plans — Small Team, Large Team and Enterprise / Build Your Own — are quoted via sales; a demo AI call is offered before you commit.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Google Gemini](https://openaitools.app/tool/gemini-gemini-advanced) | 2,637,398,242 | -0.1% | Freemium | Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds. | [.md](https://openaitools.app/tool/gemini-gemini-advanced.md) |
| 3 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries. | [.md](https://openaitools.app/tool/claude-2.md) |
| 4 | [Grok](https://openaitools.app/tool/grok) | 203,846,050 | -0.8% | Freemium | Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research. | [.md](https://openaitools.app/tool/grok.md) |
| 5 | [Genspark.ai](https://openaitools.app/tool/genspark-ai) | 10,215,720 | -7.9% | Freemium, Paid, Contact for Pricing | Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine. | [.md](https://openaitools.app/tool/genspark-ai.md) |
| 6 | [Semantic Scholar](https://openaitools.app/tool/semantic-scholar) | 8,198,672 | +5.8% | Free | Offers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries. | [.md](https://openaitools.app/tool/semantic-scholar.md) |
| 7 | [Consensus](https://openaitools.app/tool/consensus) | 6,014,388 | -1.2% | Freemium | Focuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search. | [.md](https://openaitools.app/tool/consensus.md) |
| 8 | [Kagi Search](https://openaitools.app/tool/kagi-search) | 4,647,605 | +3.2% | Free Trial, Paid | Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access. | [.md](https://openaitools.app/tool/kagi-search.md) |
| 9 | [Outreach](https://openaitools.app/tool/outreach) | 958,599 | +0.4% | Contact for Pricing | AI agents that work the revenue lifecycle alongside your sellers | [.md](https://openaitools.app/tool/outreach.md) |
| 10 | [Scite](https://openaitools.app/tool/scite) | 841,974 | +1.1% | Free Trial, Contact for Pricing | Analyzes scholarly article citations to verify scientific claims, making it superior for academic literature reviews. | [.md](https://openaitools.app/tool/scite.md) |

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Source: https://openaitools.app/compare/perplexity-ai-vs-structurely-com

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