--- title: I trust Claude for everything. This test made me rethink... description: A hands-on comparison of Grok 4.5 and Claude Opus 4.8 on three real coding tasks in a Rust codebase (fd), testing xAI's claim that Grok matches Opus at 4.2x... canonical: https://daily.dev/posts/i-trust-claude-for-everything-this-test-made-me-rethink-that--buwvuq1mg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I trust Claude for everything. This test made me rethink that. | daily.dev og:description: A hands-on comparison of Grok 4.5 and Claude Opus 4.8 on three real coding tasks in a Rust codebase (fd), testing xAI's claim that Grok matches Opus at 4.2x... og:url: https://daily.dev/posts/i-trust-claude-for-everything-this-test-made-me-rethink-that--buwvuq1mg og:image: https://api.daily.dev/og/posts/BuWVUQ1MG.png og:image:alt: I trust Claude for everything. This test made me rethink that. 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. # I trust Claude for everything. This test made me rethink that. **[The New Stack](https://daily.dev/sources/newstack)** · 8 min read · 0 upvotes · 0 comments ## Summary A hands-on comparison of Grok 4.5 and Claude Opus 4.8 on three real coding tasks in a Rust codebase (fd), testing xAI's claim that Grok matches Opus at 4.2x fewer tokens. Both models produced functionally identical code across a bug fix, refactor, and feature build. Grok used 4.3x fewer tokens, finished in one-third the time, and cost about $1 vs Opus's $5.14. Opus was slightly more thorough on documentation. The author, a habitual Claude user, concludes Grok delivered the same work for roughly 23% of the tokens and a fraction of the price, validating xAI's core marketing claim. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Grok Build vs. Claude Code: I tested which one has the better memory](https://daily.dev/posts/grok-build-vs-claude-code-i-tested-which-one-has-the-better-memory-beenfaqdz) · The New Stack · 1 upvotes · 0 comments - [I can't believe how good this AI coding model is, and it isn't from OpenAI or Anthropic](https://daily.dev/posts/i-can-t-believe-how-good-this-ai-coding-model-is-and-it-isn-t-from-openai-or-anthropic-kiu1haqe7) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#rust](https://daily.dev/tags/rust), [#ai-coding](https://daily.dev/tags/ai-coding), [#claude](https://daily.dev/tags/claude), [#grok](https://daily.dev/tags/grok) [View this post on daily.dev](https://daily.dev/posts/i-trust-claude-for-everything-this-test-made-me-rethink-that--buwvuq1mg) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"I trust Claude for everything. 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