The Big-AGI Insider’s Guide
Everything we know about Big-AGI in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Big-AGI
The Insider’s Guide
Multi-model AI workspace that compares and merges answers
Every plan, grade, refund rule and rival among AI assistants, read from Big-AGI’s own pages.
Made by Token Fabrics LLC · checked Oct 6, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Big-AGI’s own pages, its app-store listings and our grades. Every fact in it is on Big-AGI’s page too, where it is kept up to date. Checked Oct 6, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.4
GPA, above 12 of the 57 other AI assistants we grade
Big-AGI is a browser-based AI workspace that runs on your own API keys for more than 30 cloud and local model services. Its Beam feature sends one prompt to several models in parallel and can merge their replies into a single answer, and each request can be tuned and inspected in detail. The code is open source under the MIT License and can be self-hosted, while the hosted app is free and a Pro subscription adds cloud backup and sync.
To get you started, here are 9 things to know about Big-AGI, taken from its own pages and our grades.
- 1
Best for checking one answer across several AI models
Big-AGI is a browser workspace for people who already hold API keys.
- 2
Paid plans start at $9 a month
As its pricing page puts it: $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro).
- 3
There is a free plan
Big-AGI Free is the full hosted workspace at no cost, with multi-model Beam and Personas, used with your own API keys. The MIT-licensed code can also be self-hosted.
- 4
It runs on Web
Web.
- 5
Beam and Merge
Beam sends one prompt to between 2 and 24 models in parallel, each answering without seeing the others. Merge then fuses the replies into one answer with built-in or custom merge prompts.
- 6
Your own keys for 30+ services
Connects directly to OpenAI, Anthropic, Google Gemini, Mistral, DeepSeek, OpenRouter, Azure and AWS Bedrock, and to local servers such as Ollama and LM Studio, with no markup on usage.
- 7
Precise model controls
Effort, temperature, verbosity, reasoning budget, search and tools can be set per request or per persona across more than 800 models.
- 8
A 2.4 GPA, above 12 of 57
That is against the other AI assistants we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
To replace Big-AGI you would be making an AI model, which you can rent by the request but not make. That is not a weekend's work, with an AI app builder or without one.
Big-AGI at a glance
- Pricing
- Free plan, from $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro)
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web
- Made by
- Token Fabrics LLC, since 2023
- Category
- AI Assistants
- Our grade
- 2.4 GPA, fair
The report card
Best for checking one answer across several AI models
Big-AGI is a browser workspace for people who already hold API keys. Its Beam feature sends one prompt to up to 24 models at once, then merges the replies into one answer. The hosted app is free and the code is open source, but no model comes with it, chats stay in one browser unless you pay for Pro, and there's no desktop or phone app.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | Pro is $9 a month billed yearly, bang in the middle of this category, and what it buys is cloud backup, sync and 1 GB of storage. Not model access, which is still your own keys on top. That's a lot for sync, so skip it. |
| Free plan and trial | A | The hosted workspace costs nothing, Beam and Personas included, and the MIT-licensed code is yours to run. Do remember what free means here: the app is free, and each provider bills you for what you use. |
| Features | C | Beam fires one prompt at up to 24 models and Merge fuses the replies. It's a smaller job, though: no model of its own, no voice, no mobile app, and sync is held back for Pro. |
| Ease of use | C | Nothing happens until you've pasted in a key from OpenAI, Anthropic or another provider, so there are accounts to sort out before your first chat. Then there's a dial for everything. No rating on record either. |
| Platforms and integrations | C | Browser only. It installs as a web app and that's your lot, with no native desktop or phone app. The 30+ services it connects to are model providers, which is how it gets a brain, not reach into your other tools. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Big-AGI is for
- Fits if you hold API keys for several providers and want to compare their answers
- Works for self-hosters and IT teams who want an MIT-licensed chat interface
Who it is not for
- Skip it if you've never made an API key, because nothing here works without one, and each provider bills you
- Not for you if you want a phone or desktop app, as it only runs in the browser
- Tight if you're staying free and switch between devices, since chats stay in one browser without Pro
- Watch out: Pro's $9 a month buys backup, sync and 1 GB of storage, not any model access
- Watch out: team management and SLAs are only on a custom Business plan with no public price
Good to know
Good for
- People with API keys for several providers who compare answers
- Checking an important answer across models before acting on it
- Self-hosters and IT teams that want an MIT-licensed chat interface
Worth knowing
- No model access is included: every tier needs your own API keys, and each provider bills usage directly.
- Cloud backup and multi-device sync are Pro features. On Free and Open, chats stay in the browser on one device.
- It runs in the browser and installs as a web app; the site lists no native desktop or mobile apps.
- Team management and SLA guarantees are offered only through a custom Business plan with no public price.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$9
A month to start. There is a free plan too
Big-AGI has a free plan. Paid plans start at $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro).
Not model access, which is still your own keys on top.
Big-AGI Open
$0
The open-source codebase under the MIT License, self-hosted with Docker or deployed to Vercel on your own infrastructure.
Free
$0
The hosted app: everything in Open plus advanced multi-model, Personas and interface features. You bring your own API keys.
Pro
$9
per month, billed yearly ($108); $10.99 billed monthly
Everything in Free plus cloud backup of personas and chats, sync across devices with 1 GB of storage, email support and priority access to new features.
Business
Custom
Custom deployments, team management and SLA guarantees, arranged by contacting Big-AGI.
The free plan
Big-AGI Free is the full hosted workspace at no cost, with multi-model Beam and Personas, used with your own API keys. The MIT-licensed code can also be self-hosted.
Read from big-agi.com on Oct 6, 2026.
Ways to pay less
Annual discount
Save 18% with yearly billing
Pro is $9 a month when billed $108 a year, compared with $10.99 a month on monthly billing.
Stated on big-agi.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Multi-model AI workspace that compares and merges answers. Here is what it does, as its own site describes it, and what it covers: open source, self-hostable, local-first, AI features, keyboard-first, chat assistant.
It's a smaller job, though: no model of its own, no voice, no mobile app, and sync is held back for Pro.
- Beam and Merge
- Beam sends one prompt to between 2 and 24 models in parallel, each answering without seeing the others. Merge then fuses the replies into one answer with built-in or custom merge prompts.
- Your own keys for 30+ services
- Connects directly to OpenAI, Anthropic, Google Gemini, Mistral, DeepSeek, OpenRouter, Azure and AWS Bedrock, and to local servers such as Ollama and LM Studio, with no markup on usage.
- Precise model controls
- Effort, temperature, verbosity, reasoning budget, search and tools can be set per request or per persona across more than 800 models.
- Personas
- A persona carries its own instructions, attached documents and images, memory, a fixed model with parameters, and a voice, so a role can be reused across chats.
- AI Inspector
- Shows the exact request leaving the browser, including the model, parameters, tokens and cost, both before and after it runs.
- Local-first with optional sync
- Chats and settings stay in the browser by default. Pro adds cloud backup and sync of chats and personas across devices.
Where it runs
- Web
What it works with
- OpenAI
- Anthropic
- Google Gemini
- Mistral
- OpenRouter
- AWS Bedrock
- Ollama
- LM Studio
Big-AGI is made by Token Fabrics LLC, and has been around since 2023.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
12/57
Other AI assistants it is graded above
Big-AGI's GPA of 2.4 is higher than 12 of the 57 other AI assistants we grade, and level with 10.
It stands best on free plan and trial (A, above 43 of 57) and worst on features (C, above 0).
Its paid plans start at $9 a month, against a middle price of $10 for the category: 15 of the 38 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. 18 tools score higher and cost less.
Each grade against the category
Every bar is all 58 AI assistants we grade, cut by the letter each got. Big-AGI’s own letter is outlined.
- CValue for moneyAbove 5 of 57
- AFree plan and trialAbove 43 of 57
- CFeaturesAbove 0 of 57
- CEase of useAbove 3 of 57
- CPlatforms and integrationsAbove 2 of 57
Price against what you get
Each dot is one of 45 AI assistants. Further left costs less; higher up scores better on features, ease of use and platforms. Big-AGI is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Big-AGI you would be making an AI model, which you can rent by the request but not make. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 35 of the 57 other AI assistants grade higher. It costs $108 a year. Big-AGI is open source, so there is a third way: take its code and run it yourself.
What you could not
- An AI model, which you can rent by the request but not make.
- It plugs into other products, OpenAI, Anthropic and Google Gemini among them.
What this rests on. Big-AGI’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
TypingMind, LibreChat, Open WebUI, NextChat and Chatbox
The 5 tools Big-AGI is most often weighed against, with where each one differs from it.
- 2.8GPA
TypingMind
Free plan · from $39 one-time
Chat interface for AI models that runs on your own API keys.
- Big-AGI is open source, according to its own site.
- TypingMind can be bought with a one-time purchase.
- TypingMind also covers AI search and AI agents.
- 2.8GPA
LibreChat
Free
Open-source, self-hosted chat interface for many AI providers.
- LibreChat also covers AI search and AI agents.
- 3.2GPA
Open WebUI
Free plan
Self-hosted chat interface for local and cloud AI models.
- Only Open WebUI lists macOS, Windows and Linux apps.
- Big-AGI is open source, according to its own site.
- Open WebUI also covers AI search and AI agents.
- 2.8GPA
NextChat
Free plan
Lightweight open-source AI chat client you can self-deploy.
- Only NextChat lists macOS, Windows, Linux and iOS apps.
- 3.4GPA
Chatbox
Free plan · from $3.50/mo
AI chat client for your own API keys or a hosted model plan.
- Only Chatbox lists macOS, Windows, Linux, iOS and Android apps.
- Big-AGI is self-hostable, according to its own site.
- Chatbox also covers AI search and AI agents.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
13
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Big-AGI free?
Big-AGI has a free plan. Big-AGI Free is the full hosted workspace at no cost, with multi-model Beam and Personas, used with your own API keys.
How much does Big-AGI cost?
Big-AGI lists 4 plans. Big-AGI Open: $0.
What platforms does Big-AGI work on?
Big-AGI is available on Web.
Does Big-AGI offer any discounts?
Big-AGI publicly lists the following: Save 18% with yearly billing.
Does Big-AGI have an Android app?
No Android app was listed when its pages were read on Oct 6, 2026. Big-AGI is listed for Web.
Does Big-AGI have an iPhone app?
No iPhone app was listed when its pages were read on Oct 6, 2026. Big-AGI is listed for Web.
Is Big-AGI open source?
Yes. Big-AGI is open source, according to its own site.
What does Big-AGI integrate with?
Big-AGI's listing names OpenAI, Anthropic, Google Gemini, Mistral, OpenRouter, AWS Bedrock, Ollama and LM Studio.
Who makes Big-AGI?
Big-AGI is made by Token Fabrics LLC. It dates from 2023.
What are the alternatives to Big-AGI?
The closest alternatives to Big-AGI in our directory are TypingMind, LibreChat, Open WebUI, NextChat and Chatbox.
How does Big-AGI compare with other AI assistants?
Big-AGI's GPA of 2.4 is higher than 12 of the 57 other AI assistants we grade, and level with 10.
Is Big-AGI good value for money?
ToolGPA grades Big-AGI C for value for money. Its paid plans start at $9 a month, against a middle price of $10 for the category: 15 of the 38 others that charge start lower.
Could I make my own version of Big-AGI?
To replace Big-AGI you would be making an AI model, which you can rent by the request but not make.
Where this guide comes from
The prices, plans, platforms and features were read from Big-AGI’s own pages on Oct 6, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Big-AGI's own pages on 6 October 2026. Also tested with a demo account on 2026-06-28.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Token Fabrics LLC. Prices change, so check big-agi.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Big-AGI, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/big-agi
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Big-AGI: The Insider's Guide", checked Oct 6, 2026. https://toolgpa.com/tools/big-agi
Know someone choosing between AI assistants?
Send them this guide: toolgpa.com/tools/big-agi/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded AI assistants after Big-AGI, each with an Insider's Guide of its own.
- AI Assistants Insider's GuideEvery one of the 58 AI assistants we grade, compared
- Gemini Insider's GuideGoogle's AI assistant, tied into Gmail, Docs and other Google apps3.8 GPA
- Chatbox Insider's GuideAI chat client for your own API keys or a hosted model plan3.4 GPA
- ChatGPT Insider's GuideOpenAI's general-purpose AI assistant for chat, images and voice3.4 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Big-AGI’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Big-AGI is a trademark of its owner, and this guide is not made, paid for or approved by Token Fabrics LLC. Prices and plans change: check big-agi.com before you buy.