FlexAI records 44,314 monthly visits with +17.9% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Perplexity records 88,310,223 monthly visits with -3.7% growth and Freemium pricing.
Build, run and scale AI, from open models to governed agents
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
| Dimension / Metric | ||
|---|---|---|
| Official Domain | flex.ai | perplexity.ai |
| Pricing Model | Freemium, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 44.31K (44,314) | 88.31M (88,310,223) |
| MoM Traffic Delta | +6.73K (+17.9%) | -3.39M (-3.7%) |
| Primary Market & Share | 🇺🇸 United States (22.5%) | 🇺🇸 United States (25.5%) |
| Direct Visits / mo | 16.45K | 63.32M |
| User Rating | 4.2 | 4.7 |
| Supported Platforms | Website | Website |
Build, run and scale AI, from open models to governed agents
One API key and a drop-in OpenAI SDK replacement unlock 30+ open models across text, reasoning, coding, vision, embeddings, speech-to-text, text-to-speech, image and video.
Run agents connected to company context and tools with scoped memory, tool permissions, human approvals and an auditable decision trail.
Reserve NVIDIA, AMD or Tenstorrent capacity for VMs, fine-tuning and production inference when shared serverless endpoints are not enough.
AI Factory supports VPC, on-premises and air-gapped installs, with zero data retention, an EU option, SOC 2 Type II and GDPR alignment.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
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.
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.
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.
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.
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Ultra-fast AI inference on the LPU and LPX platform
The AI developer cloud for GPU pods, serverless inference and clustering
Together AI is the AI Native Cloud — a full-stack platform for running, fine-tuning and training open-source models. It spans serverless inference APIs, dedicated endpoints, GPU clusters, post-training and storage, all backed by in-house systems research.
Together AI is the AI Native Cloud — a full-stack platform for running, fine-tuning and training open-source models. It spans serverless inference APIs, dedicated endpoints, GPU clusters, post-training and storage, all backed by in-house systems research.
Serverless cloud infrastructure for AI and data workloads
Serverless cloud infrastructure for AI and data workloads
