--- title: Claude Opus is 10x faster than OpenAI GPT 5 at... description: A developer compared non-streaming completion latency across Claude claude-opus-4.8, OpenAI gpt-5, and gpt-5-mini for a real-world blog comment rewriting task.... canonical: https://daily.dev/posts/claude-opus-is-10x-faster-than-openai-gpt-5-at-non-streaming-completions-6wqm8ep5m twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Claude Opus is 10x faster than OpenAI GPT 5 at non-streaming completions | daily.dev og:description: A developer compared non-streaming completion latency across Claude claude-opus-4.8, OpenAI gpt-5, and gpt-5-mini for a real-world blog comment rewriting task.... og:url: https://daily.dev/posts/claude-opus-is-10x-faster-than-openai-gpt-5-at-non-streaming-completions-6wqm8ep5m og:image: https://api.daily.dev/og/posts/6WQM8EP5m.png og:image:alt: Claude Opus is 10x faster than OpenAI GPT 5 at non-streaming completions 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. # Claude Opus is 10x faster than OpenAI GPT 5 at non-streaming completions **[Planet Python](https://daily.dev/sources/planetpython)** · 2 min read · 0 upvotes · 0 comments ## Summary A developer compared non-streaming completion latency across Claude claude-opus-4.8, OpenAI gpt-5, and gpt-5-mini for a real-world blog comment rewriting task. Claude was nearly 10x faster than gpt-5, while gpt-5-mini was both faster and cheaper than gpt-5 (3x price difference). As a bonus, the author also measured a latency difference between using the litellm wrapper versus the native OpenAI SDK, and decided to drop litellm in favor of native SDKs partly due to recent CVEs. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#python](https://daily.dev/tags/python), [#openai](https://daily.dev/tags/openai), [#claude](https://daily.dev/tags/claude) [View this post on daily.dev](https://daily.dev/posts/claude-opus-is-10x-faster-than-openai-gpt-5-at-non-streaming-completions-6wqm8ep5m) ```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":"Claude Opus is 10x faster than OpenAI GPT 5 at non-streaming completions","url":"https://daily.dev/posts/claude-opus-is-10x-faster-than-openai-gpt-5-at-non-streaming-completions-6wqm8ep5m","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/claude-opus-is-10x-faster-than-openai-gpt-5-at-non-streaming-completions-6wqm8ep5m"},"datePublished":"2026-07-24T21:50:11.135Z","dateModified":"2026-07-24T22:43:28.634Z","description":"A developer compared non-streaming completion latency across Claude claude-opus-4.8, OpenAI gpt-5, and gpt-5-mini for a real-world blog comment rewriting task....","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1b2ad14886b99b4da6c0288842ff8525?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1b2ad14886b99b4da6c0288842ff8525?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Planet Python","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":"Planet Python","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/eac3cc584cb043b5a242d13752bd3d0c","url":"https://daily.dev/sources/planetpython"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/claude-opus-is-10x-faster-than-openai-gpt-5-at-non-streaming-completions-6wqm8ep5m","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"python,openai,claude","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Planet Python","item":"https://daily.dev/sources/planetpython"},{"@type":"ListItem","position":3,"name":"Claude Opus is 10x faster than OpenAI GPT 5 at non-streaming completions"}]} ```