Open-Source Router 'Brick' Released, Cutting LLM Costs by Up to 22x

Developed by the Regolo team, Brick is a Mixture-of-Models router that analyzes a prompt's capability requirements (coding, math, reasoning, creativity, planning, knowledge) and complexity, then forwards the query to the cheapest model capable of handling the task.

Key mechanism:

• Capability classification: Classifies prompts across 6 dimensions (coding, math_reasoning, creative_synthesis, instruction_following, planning_agentic, world_knowledge).
• Complexity assessment: A second classifier scores difficulty as Easy, Medium, or Hard.
• Routing decision: Calculates a skill-distance score for each model to select the most cost-efficient model while maintaining quality.

Key features and benefits:

• Cost savings: A real-world case study found that processing the same 1,000 queries could cut daily costs by approximately 79%, from $165 to $35.
• Easy integration: Compatible with Claude Code or any client using an OpenAI-compatible API, and can run on CPU without requiring a separate GPU.
• Open source: Released under the Apache 2.0 license, enabling free use.