---
title: "Discussion on \"Claude Opus 4.6 vs GPT-5.5 vs Gemini 3.1 Pro: Reasoning Benchmarks (3 Real Tasks Tested)\" | Hashnode"
description: "Discussion on \"Claude Opus 4.6 vs GPT-5.5 vs Gemini 3.1 Pro: Reasoning Benchmarks (3 Real Tasks Tested)\". On three reasoning tasks, Claude Opus 4.6 produced rigorous step-by-step output, GPT-5.5 reached correct answers fastest, and Gemini 3.1 Pro delivered"
url: "https://hashnode.com/posts/claude-opus-46-vs-gpt55-vs-gemini-31-pro-reasoning-benchmarks-3-real-tasks-tested/69ff4c4f9844d2037643f7d2"
---

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# [Claude Opus 4.6 vs GPT-5.5 vs Gemini 3.1 Pro: Reasoning Benchmarks (3 Real Tasks Tested)](https://owenf.hashnode.dev/claude-opus-46-vs-gpt55-vs-gemini-31-pro-reasoning-benchmarks-3-real-tasks-tested?utm_source=hashnode&utm_medium=feed)

On three reasoning tasks, Claude Opus 4.6 produced rigorous step-by-step output, GPT-5.5 reached correct answers fastest, and Gemini 3.1 Pro delivered

May 9 · 10 min read · owenf.hashnode.dev  
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-   [#ai](https://hashnode.com/tag/ai)
-   [#llm](https://hashnode.com/tag/llm)
-   [#modelcomparison](https://hashnode.com/tag/modelcomparison)
-   [#reasoning](https://hashnode.com/tag/reasoning)

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[Owen](https://hashnode.com/@owen-fox)

@owen-fox · Singapore

  
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