Kronos: open-source foundation model for financial candlesticks

Kronos is the first open-source foundation model trained exclusively on financial candlestick data from 45 global exchanges. It outputs embeddings and next-candle predictions for trading agents, was accepted to AAAI 2026 and has 42,000 GitHub stars.

• Trained on K-line data from 45 exchanges across equities, futures, forex and crypto
• Two-stage training: masked pre-training then causal fine-tuning
• Outputs embeddings, OHLCV forecasts and regime-classification logits
• 42,000 GitHub stars; accepted to AAAI 2026