Research & search · alternatives
Teams step away from reOS for a few concrete reasons. There is no free plan, so the entry price is $59 per month. Interview units are capped (12, 60 or 300 a month) and sessions over 90 minutes consume extra ones. SSO needs Scale at $999 per month, and Enterprise pricing is custom, so large costs are unknown up front.
The four alternatives in our catalog are general AI assistants rather than research platforms, so none of them runs recruiting or panels. Gemini Notebook (formerly NotebookLM) answers questions and builds summaries, audio and slides grounded in your own sources; it has a free tier, price not stated. ChatGPT has a free tier and Plus is $20 per month per user, with usage limits. Claude has a free tier and Pro is $20 per month, or $17 per month on annual billing. Perplexity searches the web with cited sources; it has a free tier and its Education Pro is $10 per month for verified students and faculty.
"Better suited" below is based on documented features and pricing from our verified profiles, not on a head-to-head test. Prices are USD as published by each vendor.
Taken from the documented limitations in our reOS profile.
| Tool | Starting price | Free tier | Platforms | Main limitation |
|---|---|---|---|---|
| reOS (this page) | $59/mo (Researcher) | No | Web | There is no free plan, and each plan caps research units per month (12 on Researcher, 60 on Team, 300 on Scale). |
| Gemini Notebook (formerly NotebookLM) | Not published | Yes | Web, Mobile | Free tier has standard usage limits and 50 sources per notebook; higher limits need a Google AI Plus, Pro or Ultra plan, which Google says are only available in specific regions. |
| ChatGPT | $20/mo (Plus (consumer)) | Yes | Web, Desktop, Mobile, API | Almost every tool (uploads, images, voice, deep research, Codex) has plan-dependent usage caps that OpenAI states can change over time, and the API is billed separately from every ChatGPT subscription. |
| Claude | $20/mo (Pro) | Yes | Web, Desktop, Mobile, API | All plans have usage limits that reset on a schedule; the paid chat subscription does not include API access, which is billed separately per token. |
| Perplexity | $10/mo (Education Pro (consumer, verified students/faculty)) | Yes | Web, API | The consumer pricing page is blocked to automated checks, so the Pro price could not be confirmed here, and free-tier Pro Search and Research access are described only as 'very limited' / 'limited'. |
| Alternative | Pick it when | Starting price | Watch out for |
|---|---|---|---|
| Gemini Notebook (formerly NotebookLM) |
Not published | ||
| ChatGPT |
$20/mo (Plus (consumer)) | ||
| Claude |
$20/mo (Pro) | ||
| Perplexity |
$10/mo (Education Pro (consumer, verified students/faculty)) |
Google's AI research partner that answers questions and creates summaries, audio and slides grounded in your own sources.
Free stops at: Standard limits for chat and generation of Slides, Audio Overviews and other artifacts, Up to 50 sources per …
Verified notebook.google (opens Gemini Notebook (formerly NotebookLM) website in a new tab)
Free plan available US price unconfirmed
OpenAI's general-purpose AI assistant for writing, research, analysis, image generation and coding help.
Free stops at: Unlimited everyday text chats subject to abuse-prevention safeguards, Separate usage limits for file uploads,…
Free · paid from $20/mo US · checked Sep 30
Anthropic's AI assistant for writing, analysis, coding and multi-step work, with free and paid plans.
Free stops at: Usage limits apply, Projects: up to 5
Free · paid from $20/mo US · checked Sep 30
AI answer engine that searches the web and replies with cited sources, plus developer search APIs.
Free stops at: Practically unlimited basic searches, Very limited amount of Pro Searches
Verified perplexity.ai (opens Perplexity website in a new tab)
Free · paid from $10/mo US · checked Sep 30
Data API for AI agents delivering web content and e-commerce intelligence as clean JSON, with historical data and a credit-based pricing model.
Free stops at: Basic rate limits: 30 RPM, 5 concurrent, No credit card required
Free plan available US price unconfirmed
Mobile AI agent that tracks topics you name, folds duplicate coverage into single briefings and alerts you only when something changes.
Watch out: The site publishes no pricing, no web version is shown (mobile app only), and the privacy and docs pages are …
Pricing US price unconfirmed
Social data API and MCP server giving AI agents access to Twitter/X, Instagram, TikTok and Reddit posts.
Free stops at: 500 credits one-time, 1 tracked keyword/user
Free · paid from $16/mo (billed annually) US · checked Sep 29
Web resource to compare LLMs by benchmarks, price, speed and context window.
Watch out: Its comparison data comes from Artificial Analysis, so rankings depend on that third-party source, and no pri…
Verified whatllm.org (opens WhatLLM.org website in a new tab)
Pricing US price unconfirmed
YouTube analytics platform showing real CPM and RPM from a connected channel, plus competitor tracking and AI content ideas.
Watch out: The 7-day trial requires a payment card and Starter covers one channel with 90 days of history and no revenue…
Verified tubeanalytics.net (opens TubeAnalytics website in a new tab)
From $19/mo US · checked Sep 29
Cookie-free, GDPR-oriented web analytics service from Germany with a 30-day free trial.
Free stops at: 25,000 page views, 1 website
Verified trackboxx.com (opens Trackboxx website in a new tab)
Pricing US price unconfirmed
Yes. Gemini Notebook, ChatGPT, Claude and Perplexity all have a free tier in our catalog, whereas reOS shows no free plan.
Documented reasons are the missing free plan, monthly unit caps, extra units for long sessions, and SSO being limited to Scale and above.
Gemini Notebook is described as answering questions and creating summaries grounded in your own sources. Its starting price is not stated.
ChatGPT Plus costs $20 a month for each user. Claude Pro is $20 per month, or $17 per month with an annual subscription of $200 billed up front.
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