TradingAgents/docs/agent/decisions/001-hybrid-llm-setup.md

type	status	date	agent_author	tags	related_files
decision	active	2026-03-17	claude	llm infrastructure ollama openrouter	tradingagents/default_config.py

Context

Need cost-effective LLM setup for scanner pipeline with different complexity tiers.

The Decision

Use hybrid approach:

• quick_think + mid_think: qwen3.5:27b via Ollama at http://192.168.50.76:11434 (local, free)
• deep_think: deepseek/deepseek-r1-0528 via OpenRouter (cloud, paid)

Config location: tradingagents/default_config.py — per-tier _llm_provider and _backend_url keys.

Constraints

• Each tier must have its own {tier}_llm_provider set explicitly.
• Top-level llm_provider and backend_url must always exist as fallbacks.

Actionable Rules

• Never hardcode localhost:11434 for Ollama — always use configured base_url.
• Per-tier providers fall back to top-level llm_provider when None.