Source: https://seerepo.com/compare/RightNow-AI/openfang/vs/volcengine/OpenViking
Markdown source: https://seerepo.com/compare/RightNow-AI/openfang/vs/volcengine/OpenViking.md
Description: openfang and OpenViking share 11 technologies: FastAPI, uvicorn, rusqlite, SQLite, Tokio, Ratatui, LangChain, zip, tracing, tracing-subscriber, and pino. openfang is written in Rust and OpenViking in Python.

# openfang vs OpenViking

openfang and OpenViking share 11 technologies: FastAPI, uvicorn, rusqlite, SQLite, Tokio, Ratatui, LangChain, zip, tracing, tracing-subscriber, and pino. openfang is written in Rust and OpenViking in Python.

- [RightNow-AI/openfang](https://seerepo.com/r/RightNow-AI/openfang): Open-source Agent Operating System
- [volcengine/OpenViking](https://seerepo.com/r/volcengine/OpenViking): Self-evolving Context Database for AI Agents. Unify Agent Memory, Knowledge RAG and Skills.

## What they share and what sets them apart

- In common: FastAPI, uvicorn, rusqlite, SQLite, Tokio, Ratatui, LangChain, zip, tracing, tracing-subscriber, pino
- Only in openfang: Tauri, axum, rumqttc, tower, wasmtime, tauri-plugin-notification, tauri-plugin-dialog, hmac, argon2, ed25519-dalek, langchain-ollama, langchain-openai, rmcp, html-escape, imap, lettre, mailparse, roxmltree, qrcode
- Only in OpenViking: AIOHTTP, aws-sdk-s3, fred, sqlx, sqlx-sqlite, lru, Redis, MySQL, OpenAI, React, Vite, TanStack, crossterm, indicatif, argon2-cffi, cryptography, hkdf, agent-framework-core, MCP, litellm, firecrawl-anydoc, pdfplumber, jinja2, cairosvg, defusedxml, feedparser, image, Pydantic, jsonschema, opentelemetry-api, volcengine-python-sdk, OpenTelemetry, opentelemetry-exporter-otlp-proto-grpc, opentelemetry-exporter-otlp-proto-http, loguru, opentelemetry_sdk, prometheus-client, tracing-appender, qrcode-terminal, Tailwind CSS, class-variance-authority, next-themes, @codemirror/theme-one-dark, tailwind-merge, sonner, Base UI, @dagrejs/dagre, @rjsf/core, @streamdown/code, CodeMirror, postprocessing, react-dropzone, recharts, three, xyflow, Lucide, react-markdown, remark-gfm, yaml, streamdown, file-type, highlight.js, qrcode.react, rehype-raw, rehype-sanitize, remark-breaks, rjsf

## Side by side

| | openfang | OpenViking |
|---|---|---|
| Size | 215,772 lines written, 277 code files | 1,152,111 lines written, 2,091 code files |
| Who writes it | 15.3% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, and Codex | 8.2% of its commits signed by AI. With Claude Code, Cursor, Codex, and GitHub Copilot |
| Activity | Last push July 2, 2026, 437 commits, 18,243 stars | Last push November 6, 2026, 3,138 commits, 41,668 stars |
| Tests | 14 test files | 1,410 test files. 56.1% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, openfang or OpenViking?

OpenViking, with 1,152,111 lines written; openfang has 215,772.

The proof: [volcengine/OpenViking's code at commit a5f08d1](https://github.com/volcengine/OpenViking/tree/a5f08d14eb9305803402e6ab71b88a66bf897187)

### Which has more GitHub stars, openfang or OpenViking?

OpenViking, with 41,668 stars; openfang has 18,243.

The proof: [volcengine/OpenViking on GitHub](https://github.com/volcengine/OpenViking)

### Which has more tests, openfang or OpenViking?

OpenViking, with 1,410 test files; openfang has 14.

The proof: [volcengine/OpenViking's code at commit a5f08d1](https://github.com/volcengine/OpenViking/tree/a5f08d14eb9305803402e6ab71b88a66bf897187)

### Which was updated more recently, openfang or OpenViking?

OpenViking: its last push was on November 6, 2026, and openfang's on July 2, 2026.

The proof: [volcengine/OpenViking's commits on GitHub](https://github.com/volcengine/OpenViking/commits)

### Which has more commits signed by AI, openfang or OpenViking?

openfang: an AI signed 15.3% of its commits, with Claude Code, GitHub Copilot, Cursor, and Codex; in OpenViking, 8.2%.

The proof: [the commits each tool signed in RightNow-AI/openfang](https://seerepo.com/r/RightNow-AI/openfang/ai)

## Sources

- RightNow-AI/openfang: Read on November 6, 2026, at commit acf2587 (https://github.com/RightNow-AI/openfang/tree/acf2587e46be174c10200489c9a2d23a39a98aeb)
- volcengine/OpenViking: Read on November 6, 2026, at commit a5f08d1 (https://github.com/volcengine/OpenViking/tree/a5f08d14eb9305803402e6ab71b88a66bf897187)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.