# Perplexity vs SELPHO

Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. SELPHO records 5,360 monthly visits with +55.3% growth and Freemium, Free Trial pricing.

| Metric | [Perplexity](https://openaitools.app/tool/perplexity-ai) | [SELPHO](https://openaitools.app/tool/selpho) |
| :--- | :--- | :--- |
| Website URL | https://www.perplexity.ai | https://selpho.com |
| Categories | AI Search Engine, AI Answer, AI Copilot, Large Language Models (LLMs) | AI Healthcare, AI Chatbot, AI Medical Diagnosis, AI Symptom Checker |
| Pricing Model | Freemium | Freemium, Free Trial |
| Monthly Visits | 88,310,223 | 5,360 |
| MoM Growth Rate | -3.7% | +55.3% |
| Primary Market | United States | United States |
| Direct Visits | 63,320,727 | 1,467 |
| Review Score | 4.7 | 3.8 |
| Saved Count | 185 | 0 |
| 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)

## SELPHO

Selpho is a peptide intelligence platform built around a simple problem: peptide research is scattered, technical, and hard to interpret. Selpho pulls it together into an AI advisor and a searchable library so people can type what they're dealing with — joint pain, gut inflammation, slow recovery — and get research-backed peptide suggestions with research status and synergy notes, rather than marketing hype.

The platform serves three audiences. Individuals get the Advisor and the library, which covers 37+ researched peptides and blends with PubMed links. Practitioners get a provider portal to invite patients, review AI scan results, annotate with clinical notes, and control per-patient feature access. Developers can embed peptide cards and an advisor widget with one line of code, or build on a REST API with 37+ peptides plus AI endpoints, metered by credits.

Every Selpho account also unlocks a broader AI health toolkit: a Vision Scanner for skin, oral, and eye concerns, MediDoc AI chat, a Lab Interpreter, a symptom journal, and a mood tracker. Selpho is explicit that it is educational — it offers information and a fast second perspective, never diagnoses or dosing, and directs serious findings to a licensed professional. It starts free, and the Advisor itself needs no signup.

**Pricing & Plans:** Free forever with no credit card: Peptide Advisor (10 questions/month), 5 AI health scans per month, the full library and guides, MediDoc AI chat, symptom journal, and mood tracker. Pro is $4.95/month — $1.99 for your first week — or $49.50/year (two months free), adding 100 advisor questions/month, 25 AI health scans, lab peptide analysis, and 50 bonus credits. Developer access starts with 100 free credits.

- **AI Peptide Advisor:** Describe your goals or symptoms — recovery, gut health, cognition, longevity — and the AI suggests well-studied peptide stacks with research status and synergy notes.
- **Searchable peptide library:** Plain-English pages for 37+ research peptides and blends covering what each is studied for, how they stack, and links to published literature.
- **Lab peptide analysis:** Upload bloodwork or a medical report and Selpho summarizes key markers and suggests peptides commonly researched for them.
- **Provider portal for practitioners:** Practitioners can invite patients, review AI scan results, add clinical notes, and control which tools each patient can access.
- **Developer API and widgets:** Copy-paste widgets and a clean REST API with 37+ peptides plus AI endpoints, metered by simple credits.

**Strengths:** Advisor works without any signup; Every library page is grounded in published research with literature links; Serves individuals, practitioners, and developers from one platform; Free plan never expires

**Limitations:** Explicitly educational — it does not diagnose, dose, or replace a doctor; Peptide research is a niche topic that won't suit every health user; The most useful capabilities (lab analysis, advisor volume, health scans) sit behind the Pro tier

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

## Frequently Asked Questions

### How do Perplexity and SELPHO compare in monthly traffic?

Perplexity has 88,310,223 monthly visits, while SELPHO has 5,360. 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%; SELPHO has +55.3%.

### 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. SELPHO: Freemium, Free Trial. Free forever with no credit card: Peptide Advisor (10 questions/month), 5 AI health scans per month, the full library and guides, MediDoc AI chat, symptom journal, and mood tracker. Pro is $4.95/month — $1.99 for your first week — or $49.50/year (two months free), adding 100 advisor questions/month, 25 AI health scans, lab peptide analysis, and 50 bonus credits. Developer access starts with 100 free credits.

## 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 | [Ubie](https://openaitools.app/tool/ubie) | 2,941,054 | -23.2% | Free | Free AI symptom checker developed by doctors | [.md](https://openaitools.app/tool/ubie.md) |
| 10 | [Doctronic AI Doctors + Human Doctors](https://openaitools.app/tool/doctronic-ai-doctors-human-doctors) | 1,131,516 | -24.8% | Freemium | AI health guidance with licensed doctors on demand | [.md](https://openaitools.app/tool/doctronic-ai-doctors-human-doctors.md) |

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

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