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LangSmith trace tree showing assistant, get_context, and ChatOpenAI
Code / Agents

LangChain

Open-source Python/JS framework for LLM apps plus LangSmith traces

Best for Code / Agents · Free-only

  • Open source
  • Free tier
  • Self-host
  • Code
Vane (Perplexica) answer page: sources, research progress, follow-up
Research / Chat

Perplexica

Self-host AI search (now Vane)

Best for Research / Chat · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
  • Chat
Hugging Face openai/whisper Space: Large V3 transcribe form
Audio

OpenAI Whisper

OpenAI speech-to-text model

Best for Audio · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
Khoj web composer: greeting, agent chips, and command bar
Research / Chat

khoj

AGPL second-brain web composer

Best for Research / Chat · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
  • Chat
Tabby Answer Engine composer: Ask anything with repo and model chips
Code / Agents

Tabby

Self-hosted coding assistant

Best for Code / Agents · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
  • Code
Hugging Face SD 3.5 Large Space: prompt box and Run
Image

Stable Diffusion

SD 3.5 Large weights + HF Space

Best for Image · Free-only

  • Open source
  • Free tier
  • Self-host
  • Image
AutoGPT Build canvas: node graph with play bar and Marketplace
Code / Agents

AutoGPT

Hosted Experts Build canvas

Best for Code / Agents · Free-only

  • Open source
  • Free tier
  • Self-host
  • Code
aider.chat homepage still with the real terminal pair-programming TUI
Code / Agents

Aider

Git-native pair programming in the terminal

Best for Code / Agents · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
  • Code
AutoGen Studio Team Builder canvas with agents, models, and tools
Code / Agents

AutoGen

Microsoft multi-agent Studio (Team Builder canvas)

Best for Code / Agents · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
  • Code
AUTOMATIC1111 txt2img: prompt, Generate, and seedling output
Image

Stable Diffusion Web UI (AUTOMATIC1111)

AUTOMATIC1111 local txt2img Gradio UI

Best for Image · Open-source / Self-host

  • Open source
  • Free tier
  • Self-host
  • Image
GPT4All desktop: Home/Chats/Models/Local Docs sidebar and New Chat
Open-source / Self-host

gpt4all

MIT local desktop chat

Best for Open-source / Self-host · Research / Chat

  • Open source
  • Free tier
  • Self-host
  • Chat