MarketFish – Simulate a market with 128 AI consumers before you launch
Before you launch, let hundreds of AI consumers vote with their wallets.
MarketFish is a multi-agent market simulation engine . Instead of asking one LLM "will this product succeed?", it builds a digital market with 128+ AI consumers — each with their own identity, budget, emotions, and biases — and lets them shop across 30 rounds. Their purchase decisions, churn patterns, and social influence reveal what real users would do.
Built on 6 academic papers (Generative Agents, OASIS, TwinMarket, Agent Bazaar, EconSimulacra, SMIF) and 11 LLM providers.
Open http://localhost:8501 → pick a mode → run.
11 providers. One is enough. More = more diverse agents.
| 🇨🇳 China | DeepSeek, Qwen, Doubao, Zhipu, Baidu, Hunyuan | | 🌍 Global | OpenAI, Anthropic, Google, Mistral, Meta |