--- title: DeepSeek V4 Pro 0813 quietly released | daily.dev description: DeepSeek's API now supports the OpenAI Responses API format, using base_url https://api.deepseek.com, enabling DeepSeek models (deepseek-v4-flash,... canonical: https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: DeepSeek V4 Pro 0813 quietly released | daily.dev og:description: DeepSeek's API now supports the OpenAI Responses API format, using base_url https://api.deepseek.com, enabling DeepSeek models (deepseek-v4-flash,... og:url: https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj og:image: https://api.daily.dev/og/posts/oMFKRX9kJ.png og:image:alt: DeepSeek V4 Pro 0813 quietly released 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. # DeepSeek V4 Pro 0813 quietly released **[Hacker News](https://daily.dev/sources/hn)** · 4 min read · 0 upvotes · 0 comments ## Summary DeepSeek's API now supports the OpenAI Responses API format, using base_url https://api.deepseek.com, enabling DeepSeek models (deepseek-v4-flash, deepseek-v4-pro) to be used directly within Codex. The documentation details streaming via server-sent events, a full list of supported event types, and a compatibility matrix covering request parameters, input item types, tools, and response fields, noting which OpenAI Responses API features are fully supported, partially supported, or silently ignored. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do I use DeepSeek models with OpenAI Codex? DeepSeek's API now supports the Responses API format used by Codex, so you can point Codex at DeepSeek by setting the base_url to https://api.deepseek.com and configuring it with the OpenAI SDK. Models deepseek-v4-flash and deepseek-v4-pro are available, and the OpenAI SDK (pip3 install openai) works with minimal configuration changes. _daily.dev surfaces integration guides like this for developers wiring new models into Codex._ ### Which Responses API parameters does the DeepSeek API support? DeepSeek supports core Responses API parameters including model, input, instructions, stream, temperature (0.0-2.0, ignored in thinking mode), top_p, max_output_tokens, and top_logprobs (0-20). Tools support is partial: function and web_search work, others are ignored. Unsupported parameters like previous_response_id, conversation, store, and background are silently ignored rather than causing errors. _Developers comparing API compatibility across model providers can track these details on daily.dev._ ### What happens when I send an unsupported Responses API parameter to the DeepSeek API? Unsupported parameters are silently ignored and do not cause errors, which means existing Responses API clients can connect to DeepSeek without modification. Examples of ignored parameters include parallel_tool_calls, max_tool_calls, previous_response_id, conversation, store, background, metadata, include, prompt, service_tier, and stream_options. _daily.dev helps developers stay ahead of quiet API compatibility gaps like this one._ ## Similar posts on daily.dev - [Your First API Call](https://daily.dev/posts/your-first-api-call-wa5tlrj2f) · Hacker News · 1 upvotes · 0 comments - [Untitled](https://daily.dev/posts/untitled-djlkxaqpz) · SitePoint · 0 upvotes · 0 comments - [DeepSeek API Docs](https://daily.dev/posts/deepseek-api-docs-mqussratb) · Hacker News · 0 upvotes · 0 comments - [Deepseek V4 on AI Gateway](https://daily.dev/posts/deepseek-v4-on-ai-gateway-nas1vjnsv) · Vercel · 0 upvotes · 0 comments --- Tags: [#deepseek](https://daily.dev/tags/deepseek), [#openai-codex](https://daily.dev/tags/openai-codex) [View this post on daily.dev](https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj) ```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":"DeepSeek V4 Pro 0813 quietly released","url":"https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj"},"datePublished":"2026-08-12T17:24:03.860Z","dateModified":"2026-08-12T17:24:29.095Z","description":"DeepSeek's API now supports the OpenAI Responses API format, using base_url https://api.deepseek.com, enabling DeepSeek models (deepseek-v4-flash,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/5d88e1fd461de15ce567540822c861bc?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/5d88e1fd461de15ce567540822c861bc?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Hacker News","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":"Hacker News","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/hn","url":"https://daily.dev/sources/hn"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"deepseek,openai-codex","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hacker News","item":"https://daily.dev/sources/hn"},{"@type":"ListItem","position":3,"name":"DeepSeek V4 Pro 0813 quietly released"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/deepseek-v4-pro-0813-quietly-released-omfkrx9kj#faq","mainEntity":[{"@type":"Question","name":"How do I use DeepSeek models with OpenAI Codex?","acceptedAnswer":{"@type":"Answer","text":"DeepSeek's API now supports the Responses API format used by Codex, so you can point Codex at DeepSeek by setting the base_url to https://api.deepseek.com and configuring it with the OpenAI SDK. 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