Big-AGI
Multi-model AI workspace that compares and merges answers
What is Big-AGI?
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.
Big-AGI has a free plan. Paid plans start at $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro). See every plan
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.
Key features
- 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.
Big-AGI pricing
- Starts at
- $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro)
- 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.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| 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 | $9per 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. |
Read from big-agi.com on Oct 6, 2026. Prices change, so confirm with Big-AGI before you buy.
Ways to pay less
- Annual discountSave 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
Works with
- OpenAI
- Anthropic
- Google Gemini
- Mistral
- OpenRouter
- AWS Bedrock
- Ollama
- LM Studio
Big-AGI alternatives
- Big-AGI vs TypingMind
Free plan · from $39 one-time
- Big-AGI vs Open WebUI
Free plan
- Big-AGI vs NextChat
Free plan
- Big-AGI vs Chatbox
Free plan · from $3.50/mo
Common questions
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. The MIT-licensed code can also be self-hosted. Paid plans start at $9 per month, billed yearly ($108), or $10.99 billed monthly (Pro).
How much does Big-AGI cost?
Big-AGI lists 4 plans. Big-AGI Open: $0. Free: $0. Pro: $9 per month, billed yearly ($108); $10.99 billed monthly. Business: custom pricing. Prices were read from big-agi.com on Oct 6, 2026.
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. It can also be run on a server of your own.
What does Big-AGI integrate with?
Big-AGI's listing names OpenAI, Anthropic, Google Gemini, Mistral, OpenRouter, AWS Bedrock, Ollama and LM Studio. A listing names up to eight integrations, so it may connect to more.
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. Each one has a side-by-side comparison with Big-AGI.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 6, 2026.