--- title: I Ran GPT-5.6 Inside Claude Code — Here’s How (And Why... description: CLI Proxy is a local proxy server that lets you route Claude Code's requests to alternative model providers like GPT, Gemini, or Grok, while keeping Claude... canonical: https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I Ran GPT-5.6 Inside Claude Code — Here’s How (And Why It Actually Matters) | daily.dev og:description: CLI Proxy is a local proxy server that lets you route Claude Code's requests to alternative model providers like GPT, Gemini, or Grok, while keeping Claude... og:url: https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia og:image: https://api.daily.dev/og/posts/o8pB88PiA.png og:image:alt: I Ran GPT-5.6 Inside Claude Code — Here’s How (And Why It Actually Matters) 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 Ran GPT-5.6 Inside Claude Code — Here’s How (And Why It Actually Matters) **[Medium](https://daily.dev/sources/medium_js)** · 7 min read · 2 upvotes · 0 comments ## Summary CLI Proxy is a local proxy server that lets you route Claude Code's requests to alternative model providers like GPT, Gemini, or Grok, while keeping Claude Code's interface, sub-agents, and workflow support intact. It works by intercepting Claude Code's API calls, swapping in real provider tokens, and translating request/response formats. Unlike single-provider workarounds (Kimi, GLM mirrors), CLI Proxy lets you mix models per task — heavy reasoning on one provider, fast edits on another. Setup involves installing the proxy, logging into providers via OAuth, and configuring a shell alias pointing Claude Code at the local server. The post also promotes Firecrawl as a web-scraping layer for agentic research tasks. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How can I run GPT models inside Claude Code instead of only Anthropic models? A proxy tool called CLI Proxy sits between Claude Code and model providers, translating authentication tokens and API request shapes so you can point Claude Code at GPT, Gemini, Kimi, or other models. You log into each provider once through the proxy's own OAuth flow, then configure Claude Code to send requests to the proxy's local server with a dummy token, which the proxy swaps for the real provider token behind the scenes. _Developers wiring multiple model providers into one agent workflow can compare setups like this on daily.dev._ ### Is it against Anthropic's terms of service to use a Claude subscription token inside another coding tool like Codex? Yes, using a proxy to point a tool like Codex at a Claude subscription token from within another client is explicitly against Anthropic's terms of service and should be avoided. The legitimate use case for proxy tools like CLI Proxy is bringing other providers' models into Claude Code's interface, not funneling a Claude subscription into a different vendor's tool. _Anyone weighing AI tool subscriptions against usage policies can find similar guidance on daily.dev._ ## Similar posts on daily.dev - [I run my local LLMs inside the ChatGPT desktop app now, and it took one free open-source tool to do it](https://daily.dev/posts/i-run-my-local-llms-inside-the-chatgpt-desktop-app-now-and-it-took-one-free-open-source-tool-to-do--3ovk4nou0) · XDA Developers · 0 upvotes · 1 comments - [How to Run OpenClaw with Open-Source Models](https://daily.dev/posts/how-to-run-openclaw-with-open-source-models-e58kjjusl) · Towards Data Science · 1 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#openai](https://daily.dev/tags/openai), [#ai-coding](https://daily.dev/tags/ai-coding), [#claude-code](https://daily.dev/tags/claude-code) [View this post on daily.dev](https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia) ```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 Ran GPT-5.6 Inside Claude Code — Here’s How (And Why It Actually Matters)","url":"https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia"},"datePublished":"2026-08-06T21:57:34.829Z","dateModified":"2026-09-13T19:55:10.505Z","description":"CLI Proxy is a local proxy server that lets you route Claude Code's requests to alternative model providers like GPT, Gemini, or Grok, while keeping Claude...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/88a46469a754050217df501a31414a16?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/88a46469a754050217df501a31414a16?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Medium","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":"Medium","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/medium","url":"https://daily.dev/sources/medium_js"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ai-agents,openai,ai-coding,claude-code","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Medium","item":"https://daily.dev/sources/medium_js"},{"@type":"ListItem","position":3,"name":"I Ran GPT-5.6 Inside Claude Code — Here’s How (And Why It Actually Matters)"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/i-ran-gpt-5-6-inside-claude-code-here-s-how-and-why-it-actually-matters--o8pb88pia#faq","mainEntity":[{"@type":"Question","name":"How can I run GPT models inside Claude Code instead of only Anthropic models?","acceptedAnswer":{"@type":"Answer","text":"A proxy tool called CLI Proxy sits between Claude Code and model providers, translating authentication tokens and API request shapes so you can point Claude Code at GPT, Gemini, Kimi, or other models. 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