--- title: 3 LLMs TESTED: Gemini 3 Pro V/S 4.5 Opus V/S GPT-5.1!... description: In this video, I'll be telling you about a comprehensive comparison of three new AI coding giants—GPT-5.1, Gemini 3.0, and Opus 4.5—based on real-world tests... canonical: https://daily.dev/posts/3-llms-tested-gemini-3-pro-v-s-4-5-opus-v-s-gpt-5-1-results-are-insane--ckkj8b6zt twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: 3 LLMs TESTED: Gemini 3 Pro V/S 4.5 Opus V/S GPT-5.1! Results are INSANE! | daily.dev og:description: In this video, I'll be telling you about a comprehensive comparison of three new AI coding giants—GPT-5.1, Gemini 3.0, and Opus 4.5—based on real-world tests... og:url: https://daily.dev/posts/3-llms-tested-gemini-3-pro-v-s-4-5-opus-v-s-gpt-5-1-results-are-insane--ckkj8b6zt og:image: https://api.daily.dev/og/posts/Ckkj8B6zT.png og:image:alt: 3 LLMs TESTED: Gemini 3 Pro V/S 4.5 Opus V/S GPT-5.1! Results are INSANE! og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # 3 LLMs TESTED: Gemini 3 Pro V/S 4.5 Opus V/S GPT-5.1! Results are INSANE! **[AICodeKing](https://daily.dev/sources/aicodeking)** · 14 min read · 0 upvotes · 0 comments ## Summary In this video, I'll be telling you about a comprehensive comparison of three new AI coding giants—GPT-5.1, Gemini 3.0, and Opus 4.5—based on real-world tests by KiloCode. We break down which model is best for prompt adherence, refactoring legacy code, and system extension so you can choose the right tool for your workflow. -- Resources: KiloCode Comparison Blog Post: https://blog.kilo.ai/p/benchmarking-gpt-51-vs-gemini-30-vs-opus-45 -- Key Takeaways: 🤖 Three flagship models dropped this month: GPT-5.1, Gemini 3.0, and Opus 4.5. 📏 Gemini 3.0 wins on strict adherence, following specs literally without extra fluff. 🛡️ GPT-5.1 is the most defensive, adding unrequested safeguards and detailed documentation. 💯 Opus 4.5 achieved a perfect score on the TypeScript refactor test, handling all requirements. 💰 Gemini is the most cost-effective option, while Opus is the most expensive but thorough. 🧠 Different prompting strategies are needed: explicit minimalism for Opus, extra detail for Gemini. 🏆 The Verdict: Choose Opus for completeness, GPT for defensiveness, and Gemini for precision. ## Full article daily.dev links to this article rather than hosting it. 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