BettaFish

BettaFish (WeiYu) is an open-source multi-agent system that analyses public opinion across 30+ social platforms.

BettaFish, also called WeiYu, is an open-source multi-agent public-opinion system. A question in chat starts a run that crawls more than 30 social apps, including Weibo, Xiaohongshu, Douyin and Kuaishou, and reads large volumes of comments. Five specialist agents plus fine-tuned and statistical models debate through a forum-style host so the report is not a single-model summary. The system can parse short video and structured search cards such as weather, calendars and stocks, and it has an interface for joining private business databases to the public crawl. It is written in modular Python for one-command deploy, and the README says the same agents can be retargeted, for example to market analysis, by changing tools and prompts.

BettaFish at a glance

Best for: Marketer, Social media creator, Researcher
Runs on: open source, self-hosted
Pricing: Free and open source
Released: July 2024
Category: AI research tool
Website: deepwiki.com

Key features

Chat-started crawls of 30+ social platforms
Five specialist agents plus a debate host
Short-video and structured-card parsing
Hook for private business databases
Modular Python, one-command deploy
Example reports and a comparison write-up

Use it for

Ask for a brand-reputation report on a university or company
Watch comment-level reaction after a product launch
Point the same agents at a finance question by changing tools

Alternatives to BettaFish

Jevon Tane — It provides a rigorous, pre-registered framework for AI agents to conduct science together.
MiroFish — Simulates thousands of autonomous agents to forecast complex real world outcomes.
phil-OKF: any topic, one reading guide — Generates minimal research-paper styled study pages with verified source citations.
MiroThinker — It handles multi-step reasoning and complex research tasks with high stability.
Luxas — From a question to a cited, compiled manuscript with no human in the loop
OpenChart — Open-source trading software with no quotas and local storage.
Leviathan — It indexes records into a single SQLite file for fast, cited agent queries.

All BettaFish alternatives