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SPECIFICTION
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Atomic Chat vs Big-AGI

Atomic Chat

atomic.chat

Big-AGI

big-agi.com

Side by side

FigureAtomic ChatBig-AGI
Price fromFree$9/mo
Free planYesYes
Free trial——
Open source——
Web—Yes
WindowsYesYes
macOSYesYes
LinuxYesYes
iOSYes—
AndroidYes—
APIYes—
Self-hosted—Yes
Plans published26
Spec score · AI chatbots and assistants7.9 (#43)9.0 (#11)
File uploadsYesYes
Free planYesYes
IntegrationsIts MCP connectors can connect to tools including Notion, Google Drive, Slack, GitHub, Figma and Supabase; it supports STDIO, HTTP and SSE transports.Supported services include Alibaba Cloud, Anthropic, Azure OpenAI, DeepSeek, Google Gemini, Mistral, Moonshot AI, NVIDIA, OpenAI, SpaceXAI, OpenRouter, Perplexity, LocalAI, LM Studio, and Ollama.
Mobile appsYesNo
SupportThe site lists support by email at [email protected].Documentation, GitHub issue reporting, and Discord support are available, while founder email support is a Pro benefit.
Web searchYesYes

Plans

Atomic Chat

  • FreeFree
  • Atomic ChatFree

Atomic Chat pricing →

Big-AGI

  • FreeFree
  • Pro$9 a month
  • Big-AGI FreeFree
  • Big-AGI OpenFree
  • Big-AGI Pro$9 a month
  • BusinessPriced on request

Big-AGI pricing →

In their own words

Atomic Chat

Atomic Chat has no write-up on Specifiction yet; its figures are above.

Visit atomic.chat

Big-AGI

Big-AGI has no write-up on Specifiction yet; its figures are above.

Visit big-agi.com