Consult-LLM – A second opinion from another model right in your existing agent
Consult-LLM is a tool that lets users query a secondary large language model directly within their existing AI agent, providing a second opinion without switching contexts.
Background
- The rise of LLM-based "agent" frameworks (e.g., LangChain, CrewAI, AutoGPT) lets AI systems autonomously plan and execute multi-step tasks. A common failure mode is that a single model gets stuck or makes confident mistakes.
- Consult-LLM is an open-source library that lets an agent ask a different LLM (e.g., a more powerful or cheaper model) for a second opinion inside a workflow — similar to how a human developer might peer-review a tricky decision.
- The project is by Raine, a notable open-source developer; "consult-llm" adds an agent-to-agent consult step without leaving the original agent's pipeline, improving reliability without forcing a full model swap.
- This matters because it points to a emerging pattern in AI engineering: using heterogeneous models (mixing cheap + expensive, fast + thorough) in a single agent, rather than trusting one model to do everything.