AI · alternatives · 2026

24 alternatives to Cortex - Your Intelligent AI Companion

Your intelligent AI companion for conversations

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Second Brain for AI▲286
Persistent memory for Claude, ChatGPT & Cursor. Free.
May 2026 · github.com · its alternatives →
2
Second Brain▲281
Hi HN, I'm Dom, a solo founder. I built Second Brain to solve a common issue I had with AI chats: the knowledge disappears. There’s no structure, no memory, and no way to reuse or build on them. So I built a tool that combines AI chat with a visual, interconnected knowledge system. Key features: - Save AI responses into editable docs (Notion-style Pages). - AI Visual board with multiple content & chat nodes (like Miro meets ChatGPT). - Add and chat with YouTubes, TikToks, Audio, PDFs, GitHub repos, Looms, websites, etc. - Organize using Projects and Smart Tags — then chat with full contexts.…
2025 · second-brain-lac-ten.vercel.app · its alternatives →
3
Brainybear.ai▲284
Train AI chatbots in 3 clicks and help customers instantly
2024 · brainybear.ai · its alternatives →
4
Languify▲242
Make every student & teacher feel like a superhero
2023 · languify.in · its alternatives →
5
Learn About▲210
AI-powered companion for educational research
2024 · learning.google.com · its alternatives →
6
Teddy AI▲85
The conversational AI study buddy for all children
2023 · teddyai.com · its alternatives →
7CO
Cortex – OS-wide AI with instant context input▲6
Hey HN! I’m Andrew, and I’ve been building Cortex (https://cortexdesktop.com/) for the last few weeks. Cortex is my attempt to reimagine how we interact with computers - starting with a simple interface, but aiming for something deeper: an AI layer over your OS that understands what you’re doing, remembers it, and helps you dynamically. Right now, Cortex is just a floating overlay you can summon anywhere on your Mac. It works like an inline ChatGPT, but it lets you instantly send that context into the chat by highlighting text - so you don’t have to explain what you’re doing.…
2025 · cortexdesktop.com · its alternatives →
8
Cognitia▲37
AI companion that remembers, learns, and grows with you
2025 · cognitia-ai.com · its alternatives →
9
Rapid AI 2.0▲95
Unlock tomorrow with your AI chatbot companion
2023 · its alternatives →
10
MNDXT▲93
Chat, write, design your AI companion for brilliant ideas
2023 · play.google.com · its alternatives →
11
Social Bellow▲93
AI powered interactive companion
2023 · socialbellow.com · its alternatives →
12
Cortex▲70
Run multiple claude-code agents from YAML config
Jan 2026 · cortex-cli.vercel.app · its alternatives →
13
Idyll: AI Voicebot Companion with Memory▲79
Idyll: AI companions that remember, talk, and truly connect
2025 · getidyll.in · its alternatives →
14
LucidFocal▲72
Simplify your life, AI chatbot
2023 · apps.apple.com · its alternatives →
15
GPTFriend.chat▲64
Your intelligent and personable virtual companion
2023 · its alternatives →
16
Loqui-Ai▲64
AI language learning conversational companion
2022 · its alternatives →
17
Talk▲81
AI-powered, omnichannel engagement
2023 · ortto.com · its alternatives →
18
BrainNote▲50
Your AI voice notetaker. Speak and go
2024 · its alternatives →
19
CORTEX AI ▲6
Good for research and image generation.
Jul 2026 · its alternatives →
20
AI memory beyond the context window▲8
AI Memory Context Solved
Jan 2026 · github.com · its alternatives →
21
MyDailyJournal▲12
Journaling through chats with AI
2024 · its alternatives →
22
FreeBot AI — Chat Smart▲13
An AI chatbot for anything, anytime, anyone
2025 · play.google.com · its alternatives →
23CW
Chatting with AI Sucks. Try Mindmapping▲12
2024 · fuzzyflo.com · its alternatives →
24
Brainode.ai▲13
Create AI mind maps with web-enabled Node Chats.
2025 · raelume.ai · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →