CoChat vs Unium™

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CoChat compared with Unium™
Detail	CoChat	Unium™
What it does	AI research workspace that verifies every source	Shared AI chat for couples, friends and family
Stage	Startup	Not given
Founded	2025	Not given
Based in	Not given	GB
Pricing model	Freemium	Free trial
Pricing	Free: Unlimited messages with free models, access to Basic Models, real-time collaboration, side-by-side model comparison, 3 file uploads per day, 10 citation verifications, 10 GB Zotero Storage. Starter: $9 per month includes everything in Free plus Premium Models, 5x higher usage, 20 file uploads	Free for 2 days (includes Balanced model, memory, voice notes and images, up to 5 people, no card needed). Together $10/month with balanced model, memory, voice notes, image generation, and extended model choice. Together Plus $20/month includes up to 2.2× the usage of Together. Household $40/month
Key features	Search 200M+ academic papers Verify citations against CrossRef and Semantic Scholar Real-time collaboration with advisors and co-authors Compare responses from multiple AI models 250+ integrations with research tools Automated research workflows Generate literature review tables Create flashcards and study materials PRISMA diagram generation Cloud workspace to run code	Shared chats where multiple people can join the same conversation Switch between AI models without losing context Memory across chats Voice notes and image generation Private chats alongside shared ones Web search integration Add up to 10 people to one subscription Available on iPhone, Android and web Access to multiple AI models including GPT-6 and Claude Opus 5.5 No data training on user conversations
What makes it different	Verifies every citation against academic databases instead of guessing Addresses the citation problem where 1 in 4 citations misrepresent their source Built on Open WebUI, the most widely used open-source AI interface Real-time team collaboration in the same AI workspace Cross-reference AI model outputs to catch hallucinations	Multiple people in one chat instead of separate conversations One subscription covers everyone on the account with no additional charges Switch AI models without losing memory or context AI facilitates discussion by asking both perspectives before suggesting compromises Chats are shared by default but can be made private
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	11 −23 (down) since last check	20 +3 (up) since last check
Trust Flow (Majestic)	7	0
Citation Flow (Majestic)	28	9
Referring domains (Majestic)	123	2

5 details filled in for both companies.

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