NeuralUCB Router: An OpenAI-Compatible API Proxy That Routes LLM Requests Using a Multi-Armed Bandit Algorithm
Article summary
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Every team using LLMs in production hits the same wall: you don't need GPT-4 for every request, but you don't know in advance which ones actually need it. A user asking "what is 2+2?" and a user asking "find the bug in this recursive async Rust function" both hit the same /v1/chat/completions endpoint. Route them both to GPT-4o and you're paying $15 per million tokens for arithmetic. Route them both to a local model and quality collapses on complex work. NeuralUCB Router solves this. It is a…
1Key Takeaways
- Every team using LLMs in production hits the same wall: you don't need GPT-4 for every request, but you don't know in advance which ones actually need it.
- A user asking "what is 2+2?" and a user asking "find the bug in this recursive async Rust function" both hit the same /v1/chat/completions endpoint.
- Route them both to GPT-4o and you're paying $15 per million tokens for arithmetic.
- Route them both to a local model and quality collapses on complex work.
2AIWedia Score
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3Why it matters
Coding AI shifts how fast software ships and how much human review each change needs. DEV — ML reports that every team using LLMs in production hits the same wall: you don't need GPT-4 for every request, but you don't know in advance which ones actually need it.
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