QUANTBRIEF: AI-POWERED REAL-TIME MARKET INTELLIGENCE AGENT
Multi-agent financial intelligence platform built at Mistral AI Hackathon — 5-agent pipeline screening 30+ articles in <50ms each, analyzing full SEC filings in 256K context, and delivering multilingual audio briefings.
Overview
QuantBrief is a multi-agent market intelligence platform that acts as a personal Chief Investment Officer for retail investors. It monitors markets, SEC filings, and news sources automatically — then delivers synthesized intelligence briefs on a user-defined schedule.
Built in 48 hours at the Mistral AI Worldwide Hackathon 2026 (Anything Goes track). The system leverages 4 specialized Mistral models, each chosen for a specific strength in the analysis pipeline.
The core problem: 150+ million retail investors face 300+ financial articles per hour and complex 80–120 page SEC filings, yet Bloomberg Terminal costs $25,200/year. QuantBrief democratizes this intelligence.
Architecture
┌─────────────────────────────────────────────────────────┐
│ DATA INGESTION (Free APIs) │
│ SEC EDGAR · yfinance · RSS feeds · FRED macro data │
└────────────────────────┬────────────────────────────────┘
▼
┌─────────────────────────────────────────────────────────┐
│ 5-AGENT ORCHESTRATED PIPELINE │
│ │
│ ① News Screener (Ministral 3B) ~50ms/article │
│ ② Filing Analyst (Mistral Large 3) 256K context │
│ ③ Reasoning Engine (Magistral Medium) CoT analysis │
│ ④ Synthesizer (Mistral Large 3) Cross-source │
│ ⑤ Voice Agent (ElevenLabs) 5 languages │
└────────────────────────┬────────────────────────────────┘
▼
┌──────────────────────┬──────────────────────────────────┐
│ REACT DASHBOARD │ REST API (25+) │
│ Real-time WS │ JWT auth · Rate limiting │
│ Charts · Audio │ PostgreSQL · Redis cache │
└──────────────────────┴──────────────────────────────────┘
Multi-Agent Pipeline
Each agent uses a different Mistral model optimized for its role:
- News Screener (Ministral 3B) — High-throughput batch screening of 30+ articles, JSON-structured relevance and sentiment scoring at ~50ms per article
- Filing Analyst (Mistral Large 3, 256K) — Ingests entire 80–120 page SEC filings (10-K, 10-Q, 8-K) in a single context window — no RAG, no chunking, full document understanding
- Reasoning Engine (Magistral Medium) — Chain-of-thought portfolio impact assessment with confidence scores
- Synthesizer (Mistral Large 3) — Cross-source correlation into executive briefs with actionable items
- Voice Agent (ElevenLabs) — Professional multilingual audio briefings in 5 languages (EN/FR/DE/PL/ES)
Key Features
- Scheduled brief generation — every 4h, daily, or weekly on user-defined UTC time
- Real-time market data with technical analysis (RSI, MACD, Bollinger Bands)
- Interactive candlestick charts (Recharts + Lightweight Charts)
- Earnings call transcription and analysis via Mistral multimodal
- Portfolio and watchlist management with per-ticker news sentiment
- Full JWT authentication with access/refresh token flow
- WebSocket pipeline progress (real-time stage + percentage)
- 33 automated tests with CI/CD via GitHub Actions
Tech Stack
Python, FastAPI, SQLAlchemy, PostgreSQL, Redis, Mistral SDK, ElevenLabs, APScheduler, React 19, TypeScript, Vite, Zustand, Recharts, Tailwind CSS, Docker, Vercel, Railway