Beam sends your prompt to 2-24 models in parallel. They answer blind (no cross-viewing), so agreement signals high confidence. Merge then fuses the best parts.

Yes. Big-AGI is local-first; your chats and files stay in your browser/device. The Pro cloud sync is encrypted and optional.

Can I run it offline?

The app can open offline (Labs feature), but it needs internet to contact AI providers unless you use local models via Ollama/LM Studio.

How is the free version funded?

The free, open-source version is funded by Pro subscriptions ($9/month). It's independent and non-VC funded.

What is the AI Inspector?

A debug tool showing the exact raw API request sent to the provider, including model, parameters, tokens, and cost. For full transparency.

How does Merge combine models?

Merge offers multiple strategies: 'Fuse' for a blended answer, 'Guided' with a custom prompt, or 'Compare' for a side-by-side view.

Directory/Productivity/AI Workspaces/Big-AGI

Big-AGI

Big-AGI is a self-hosted, open-source AI frontend for power users. It connects to 30+ AI services and 800+ models (OpenAI, Anthropic, Gemini, DeepSeek, local models via Ollama/LM Studio) using your own API keys. Its core 'Beam' feature runs a prompt across 2-24 models in parallel, letting you compare responses side-by-side to gauge consensus and spot hallucinations before merging them into a single answer. Built for critical work by physicians, lawyers, developers, and researchers, it offers granular control over every model parameter, advanced 'Personas' for repeatable expert workflows, and a transparent 'AI Inspector' to view raw requests and costs. The app is local-first for privacy, installable as a PWA, and includes features like voice calls, split-pane views, and multimodal input/output.

Productivity

Visit website

Added on

Sep 22, 2026

Multi-modelBeam parallelBYO API keysLocal-first800+ modelsOpen sourcePWA

Product information

Everything worth knowing about Big-AGI

The complete picture — from everyday features to the technical detail builders and IT folks dig for.

Core features

What it actually does

Beam & Merge Confidence

Send one prompt to 2-24 models in parallel. Models answer blind, so agreement is hard to fake. Where they agree, you can ship with confidence. Where they differ, it's a sign to dig deeper. Then a Merge pass fuses every response into one answer, sharper than the best single model.

Advanced Personas with Context

Codify expertise once. A persona carries its own instructions, attached docs and images, memory, a fixed model, parameters, custom chat reinforcements, custom merges, and voice.

Precise Model Controls

Dial in effort, temperature, verbosity, reasoning budget, search and tools. Per request, per persona. Over 800+ fully controllable models.

BYO API Keys & Local-First

Bring your own API keys for direct, zero-lag access to 30+ AI services including cloud and local models. Data stays on your device by default.

Transparent AI Inspector

Shows the exact request leaving your browser: model, parameters, tokens, cost. Nothing hidden, before and after it runs.

Technical capabilities

Resilient Client-Side Processing

Optimized for zero latency with highly parallel UI, keyboard shortcuts. Features automatic recovery, explicit errors, route-arounds, and retries for provider turbulence.

Custom Merge Programs

4+ built-in fusions (Fuse, Guided, Compare) and the ability to write your own custom merge prompts.

Must watch videos

Who uses it

Real use cases, no hype

Critical Decision Support

Use Beam for parallel model consensus on high-stakes clinical, legal, or business decisions.

Code Generation & Review

Compare code outputs from multiple models and fuse the best logic using Merge.

Research & Analysis

Analyze documents with personas, then use Beam to cross-validate conclusions.

Creative Brainstorming

Run a prompt through diverse models to explore different stylistic approaches.

Model Benchmarking

A/B test models side-by-side on cost, speed, and quality for your specific task.

Secure Data Processing

Process sensitive data locally or through direct provider connections without middleware.

Multi-Modal Workflows

Combine text, images, PDFs, and voice input with powerful model controls.

What's great

Massive multi-model support (800+ models, 30+ providers)
BYO API keys, no vendor lock-in or markup
Beam & Merge for parallel model confidence checks
Local-first data storage with optional cloud sync
Advanced persona system with attached context/memory

Technical strengths

Client-side optimized, zero-latency UI with keyboard-first design
Transparent AI Inspector shows raw API requests/responses
Automatic recovery, retries, and provider route-arounds
Supports 44+ controllable model parameters per request
Open-source core with active GitHub community (7.1k stars)

Where it falls short

Requires managing your own API keys for all providers
Pro plan needed for multi-device sync and cloud backup
No built-in model hosting; relies on external providers
Initial setup requires configuring API keys manually
Beam feature costs multiple API calls per prompt
Complex feature set may overwhelm casual users

Technical limitations

No centralized billing; direct provider costs only
Self-hosted instance requires technical setup/maintenance

For technical folks

The deep-dive specs

FAQ

Includes technical Q&A

You sign up directly with AI providers (OpenAI, Anthropic, etc.) and input your own API keys. Big-AGI never touches your money or data.

Traffic Insights

Monthly Visits

—

October 2026

Growth Rate

vs last month

Dominance

in Productivity

Top Country

—

Top Countries Breakdown

—

Growth Trend

Stable

Traffic has remained stable.

Honest pricing

No sneaky tiers, no “contact sales”

Here's who each plan is actually for — and where the hidden charges might hit.

Free

Individuals

Advanced Multi-model
Advanced Personas
Advanced UI
Hosted by us

Pro

Most picked

$9/mo

Individuals

Everything in Free
plus Cloud backup of personas & chats
Multi-device sync
Email support from the builder
Priority access to new features

View Full Plans & Pricing on Big-AGI

Official pricing, checkout, and plan upgrades are handled directly on big-agi.com.

Reviews

What the internet actually thinks

Data refreshed weekly. No paid placements.

Trustpilot

Not reviewed yet

Capterra

Not reviewed yet

Product Hunt

Not reviewed yet

COMMUNITY COMMENTS

Help others make informed decisions. Your honest feedback shapes the community's understanding of this tool.

Your Rating

Your Comment

Tips for commenting

•Be specific about features you used
•Share real use cases and results
•Mention both pros and cons
•Keep it honest and constructive

to leave a comment

Your comment is published immediately.

Filter by rating:

Sort by:

No comments yet

Be the first to share your experience with this tool.

Productivity

AI-powered clinical documentation and intelligence platform for healthcare.

View

Big-AGI

Everything worth knowing about Big-AGI

What it actually does

Who uses it

The deep-dive specs

FAQ

Traffic Insights

No sneaky tiers, no “contact sales”

What the internet actually thinks

Leave a Comment

Tips for commenting

Not quite the right fit?

Rev

supermemory

Albert

Printful

Abridge