Manifest Smart Model Router Hits 6,125 Stars — Routes Agent Requests Across 500+ Models in Under 2ms, Cutting AI Costs Up to 70%

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mnfst/manifest analyzes each query locally and routes to the cheapest model that can handle it. Scoring algorithm evaluates 23 dimensions (13 keyword-based, 10 structural) to categorize into four tiers (Simple/Standard/Complex/Reasoning) in under 2ms. Supports 500+ models across every major provider with up to 5 fallback models per tier for automatic retry on rate-limiting. Open-source LLM router designed specifically for agent workloads.