Best alternatives to GigaBrain - AI Companion for Reddit (2026)
10 Chrome extensions that do a similar job to GigaBrain, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.
GigaBrain - AI Companion for Reddit today
GigaBrain alternatives, compared
- 1
AI Compare - One-Click AI Comparison: ChatGPT, Gemini, Grok & More.
Compare answers from ChatGPT, Gemini, Claude and more in one tab—for content QA, brand monitoring, and GEO optimization.
≈3K users4.7★ from 75 ratingsUpdated 2 days ago13 permissions- About 3.3× fewer users than GigaBrain
- Rated 0.5 stars higher
- Updated more recently
- Asks for more permissions (13 vs 2)
- Listed under Tools
- 2
ChatGPT AI assistant for Google Reviews and Questions
Use ChatGPT to automate answering Google Reviews, change tones, work with all languages, and more, all for free.
≈1K users4.8★ from 26 ratingsNot updated for 2+ years4 permissions- About 10× fewer users than GigaBrain
- Rated 0.7 stars higher
- Updated less recently
- Asks for more permissions (4 vs 2)
- Listed under Communication
- 3
Fiona AI - ChatGPT SidePanel + GPTs & GPT-4
Your AI Copilot powered by GPT-4. Answers complex questions. Writes emails, reads articles, Usable everywhere.
≈1K users3.7★ from 3 ratingsNot updated for 2+ years4 permissions- About 10× fewer users than GigaBrain
- Updated less recently
- Asks for more permissions (4 vs 2)
- 4
Grok AI
With Grok AI, you can boost your workflow with fast answers from grok ai and accelerate your success using the grok model.
≈20K users4.8★ from 91 ratingsUpdated 13 months ago2 permissions- About 2.0× more users than GigaBrain
- Rated 0.6 stars higher
- Updated more recently
- 5
Moodle GPT Quiz Solver
A Chrome extension to generate answers for moodle quizzes using ChatGPT API. Shift + S to hide/show answers
≈2K users3.0★ from 4 ratings2 permissions- About 5.0× fewer users than GigaBrain
- Listed under Tools
- 6
B Companion
Features taken down due to a Trademark Complain by Brainly. Minor CSS changes only.
≈1K users4.5★ from 25 ratingsUpdated 18 months agoNo special permissions- About 10× fewer users than GigaBrain
- Rated 0.3 stars higher
- Updated more recently
- Asks for fewer permissions (0 vs 2)
- Listed under Functionality & UI
- 7
Metaprompt - AI answers for training, courses and study
Highlight any question on any page and get an instant AI answer. Built for online training, courses and study. No tab switching.
≈4K users5.0★ from 5 ratingsUpdated 5 days ago6 permissions- About 2.5× fewer users than GigaBrain
- Updated more recently
- Asks for more permissions (6 vs 2)
- Listed under Tools
- 8
Google Forms Solver-Gemini Powered with OCR
A Chrome extension that scans questions and options from Google Forms, fetches data, and generates answers to help form completion.
≈2K users3.9★ from 16 ratingsUpdated 16 months ago5 permissions- About 5.0× fewer users than GigaBrain
- Updated more recently
- Asks for more permissions (5 vs 2)
- Listed under Education
- 9
Quizonator - AI quiz assistant
AI answers and explanations for quizzes. Analyze questions on the page or from a screenshot and use your own study materials.
≈7K users3.5★ from 49 ratingsUpdated in the last day20 permissions- A similar number of users to GigaBrain
- Rated 0.7 stars lower
- Updated more recently
- Asks for more permissions (20 vs 2)
- Listed under Education
- 10
AI Answer Generator: Get Question Answer Free
Free AI Answer Generator: Instantly provides accurate, tailored answers to a wide range of queries, enhancing knowledge by AIFreeBox
≈7K users3.7★ from 3 ratingsUpdated 20 months ago2 permissions- A similar number of users to GigaBrain
- Updated more recently
- Listed under Education
GigaBrain alternatives: questions
What is the best alternative to GigaBrain?
By users, the most popular alternative is Grok AI with ≈20K users and a 4.8-star rating. The closest match by what it does is AI Compare - One-Click AI Comparison: ChatGPT, Gemini, Grok & More..
Which GigaBrain alternative has the best rating?
Grok AI has the highest rating of these alternatives with 50+ ratings: 4.8 out of 5 from 91 ratings.
Is there a GigaBrain alternative that asks for fewer permissions?
B Companion asks for 0 permissions, against 2 for GigaBrain.
How many alternatives to GigaBrain are there?
We list 10 close alternatives to GigaBrain on the Chrome Web Store, picked by what they do and ranked by how close they are.
Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.