# Claude beats known solutions to 72 of 203 open MIPLIB problems

> Original title: MIPLIB is a library of optimization problems, such as how best to schedule airline crews and delivery trucks.

- Source: Claude
- Published: 2026-11-09T21:06:36.000Z
- Bad Influence: https://badinfluence.news/items/oiqb9o2hpto8g17r33ngd2y12
- Original: https://x.com/claudeai/status/2119899477855379913

## Summary

Anthropic says Claude beat the listed solution to 72 of 203 open MIPLIB optimization problems. In 45 of those cases, Claude proved that its solution was optimal. MIPLIB is a library of optimization problems such as airline crew scheduling and delivery truck routing.

## Post

MIPLIB is a library of optimization problems, such as how best to schedule airline crews and delivery trucks.

Of 203 open problems, Claude beat the listed mathematical solution in 72 cases, and in 45 cases proved that a solution was optimal.

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