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Rohan Paul· @rohanpaul_ai · X· 2026-11-12 03:27 · Original publication time AI score47

Rayline introduces ARC for AI model routingMachine translation

AI introduction

Rayline says ARC selects a model and an amount of thinking for each step of an AI agent’s work. Its announcement claims more than 97.5% of Opus 5.5’s quality at as little as one-tenth the cost, and says ARC is fully open-source. The post does not state the evaluation conditions for those figures.

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Rohan Paul@rohanpaul_ai

@davidvgilmore what’s the latency penalty per turn on this?

ReplyDavid Valerio Gilmore@davidvgilmore

In 2015, I built an AI that detects early cancer. Today, we’re introducing ARC by Rayline: the world’s first unified model for routing AI. > 97.5% of Opus 5.5 quality > Up to 1/10th of the cost > Fully open-source It picks the right model and the right amount of thinking for every step of your agent’s work. Try it here and read our technical report below: https://t.co/P7LCZwhMuQ

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03:27 · 2026-11-12 · UTC+8

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