---
title: "Discussion on \"Claude Opus 5.5 vs GPT-6.1 Sol for coding agents\" | Hashnode"
description: "Discussion on \"Claude Opus 5.5 vs GPT-6.1 Sol for coding agents\". Same coding agent, six tasks with hidden tests, two runs per model. Both passed every test; Opus took about half the time at about the same cost."
url: "https://hashnode.com/posts/claude-opus-5-5-vs-gpt-6-1-sol-for-coding-agents/6af2730fd0e3db4dc4c07bbc"
---

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# [Claude Opus 5.5 vs GPT-6.1 Sol for coding agents](https://xiunxiao.hashnode.dev/claude-opus-5-5-vs-gpt-6-1-sol-for-coding-agents?utm_source=hashnode&utm_medium=feed)

Same coding agent, six tasks with hidden tests, two runs per model. Both passed every test; Opus took about half the time at about the same cost.

8h ago · 10 min read · xiunxiao.hashnode.dev  
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