--- title: When Newer Models Score Lower on React Native Evals description: An analysis of React Native benchmark results showing that newer AI models (GPT-5.5 and Claude Opus 4.7) score lower than their predecessors despite not being... canonical: https://daily.dev/posts/when-newer-models-score-lower-on-react-native-evals-7i3zq0k0g twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: When Newer Models Score Lower on React Native Evals | daily.dev og:description: An analysis of React Native benchmark results showing that newer AI models (GPT-5.5 and Claude Opus 4.7) score lower than their predecessors despite not being... og:url: https://daily.dev/posts/when-newer-models-score-lower-on-react-native-evals-7i3zq0k0g og:image: https://api.daily.dev/og/posts/7I3zQ0k0g.png og:image:alt: When Newer Models Score Lower on React Native Evals 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. # When Newer Models Score Lower on React Native Evals **[Callstack Blog](https://daily.dev/sources/callstack-blog)** · 7 min read · 0 upvotes · 0 comments ## Summary An analysis of React Native benchmark results showing that newer AI models (GPT-5.5 and Claude Opus 4.7) score lower than their predecessors despite not being strictly weaker. GPT-5.5 tends to 'reinvent the wheel' — understanding the intent but substituting its own implementation shape for the expected API contract, such as using deprecated MasonryFlashList or collapsing separator components into row styles. Opus 4.7 exhibits a different failure mode: it consistently reframes tasks using different abstractions (e.g., switching from 'projects' to 'todos' query keys in TanStack Query tasks), suggesting it has internalized a different mental model for React Query and gesture patterns. The key insight is that benchmark scores penalize deviation from expected code contracts, meaning a model can produce working, even elegant code and still score poorly — raising questions about what coding evals actually measure. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Google ranks the best AI for building Android apps, and the winner isn’t Gemini](https://daily.dev/posts/google-ranks-the-best-ai-for-building-android-apps-and-the-winner-isn-t-gemini-zjbxswfz9) · The New Stack · 1 upvotes · 0 comments --- Tags: [#react-native](https://daily.dev/tags/react-native), [#claude](https://daily.dev/tags/claude), [#gpt](https://daily.dev/tags/gpt) [View this post on daily.dev](https://daily.dev/posts/when-newer-models-score-lower-on-react-native-evals-7i3zq0k0g) ```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":"When Newer Models Score Lower on React Native Evals","url":"https://daily.dev/posts/when-newer-models-score-lower-on-react-native-evals-7i3zq0k0g","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/when-newer-models-score-lower-on-react-native-evals-7i3zq0k0g"},"datePublished":"2026-06-08T12:42:35.134Z","dateModified":"2026-06-08T12:43:05.776Z","description":"An analysis of React Native benchmark results showing that newer AI models (GPT-5.5 and Claude Opus 4.7) score lower than their predecessors despite not being...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4fa3d0683310c547ed4912e26ebd1184?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4fa3d0683310c547ed4912e26ebd1184?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Callstack Blog","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Callstack Blog","logo":"https://media.daily.dev/image/upload/s--3qItoroi--/f_auto,q_auto/v1774179048/logos/callstack-blog?_a=BAMAMiWQ0","url":"https://daily.dev/sources/callstack-blog"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/when-newer-models-score-lower-on-react-native-evals-7i3zq0k0g","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"react-native,claude,gpt","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Callstack Blog","item":"https://daily.dev/sources/callstack-blog"},{"@type":"ListItem","position":3,"name":"When Newer Models Score Lower on React Native Evals"}]} ```