--- 格式版本: 2 标题: "Models | ChatGPT Learn" 原文链接: "https://developers.openai.com/codex/models" 发布日期: "2026-09-02" 发布时间校准状态: "found" 发布时间需复核: "否" 发布时间来源: "rule:local:strict_original_body" 发布时间证据: "Published Time: Wed, 02 Sep 2026 00:41:08 GMT" 发布时间校准原因: "规则确认唯一严格发布时间，来源 local:strict_original_body" 发布时间校准置信度: "high" 发布时间候选数量: 4 发布时间严格候选数量: 1 发布时间原页读取状态: "source template page reused from URL open" 发布时间未找到原因: "" 发布时间校准时间: "2026-09-02T10:27:04+08:00" 发布时间仲裁状态: "skipped" 发布时间仲裁尝试次数: 0 发布时间仲裁耗时毫秒: 0 发现时间: "2026-09-02T10:18:13+08:00" 入库时间: "2026-09-02T02:27:04.978Z" 来源平台: "固定入口" 搜索渠道: "fixed_url" 搜索词: "https://developers.openai.com/blog" 匹配关键词: - "deployment" - "performance" - "latency" - "throughput" - "AI" 相关厂家: - "OpenAI" - "Microsoft" - "AWS" - "Google" - "Oracle" 相关专家: [] 内容类型: "网页" 抓取工具: "Jina Reader" 清洗工具: "Jina Reader Markdown + Defuddle/Readability 正文提取" 原始附件: [] AI优质: "否" AI打分: 22 AI分档: "非优质" AI质检状态: "不通过" AI打分理由: "正文主线为Codex/API模型选型与配置说明，属于产品文档和模型层使用指南，完全不涉及超节点、AI Rack、机柜级系统或关键部件落地；虽来源官方权威，但主题无关且无新增机架级事实，按强否决中教程与运维选型处理，未命中任何高价值准入通道。" AI质检模型: "zj-deepseek-v4-flash" AI质检时间: "2026-09-02T12:14:33+08:00" AI主题相关性: 0 AI来源权威性: 12 AI新颖性: 4 AI技术细节: 0 AI商业部署信号: 0 AI完整性: 6 AI评分提示词版本: "v17-精简生产版" AI评分提示词SHA256: "48fb9777f386026761b4873eaff30807694fb11e9b352d7c69bf2dfde750cc7d" AI评分知识库版本: "knowledge_base_v1-20260819+runtime.66" AI评分知识库SHA256: "392aeec055aaeafa7a3d419bc23a4eb8c9dd2456cb3dcb199200ba4394eda140" AI评分知识库检索词: "[\"OpenAI\",\"https://developers.openai.com/blog\",\"RAS\",\"NPU\",\"Google\",\"Meta\",\"Microsoft\",\"URL\",\"GMT\",\"API\",\"GPT-5.6\",\"SDKs\"]" AI评分知识库命中: "[{\"id\":\"july-correct-0033\",\"title\":\"Microsoft, Alphabet, Meta Pivot from Buy to Build in AI\",\"sourceType\":\"labeled_article\",\"time\":\"2026-07\",\"matchedTerms\":[\"OpenAI\",\"RAS\",\"Google\",\"Meta\",\"Microsoft\",\"URL\",\"API\",\"GPT-5.6\"],\"rank\":-19.35374838648524},{\"id\":\"runtime-51cfe3db04ed0bd3efb5e0e3\",\"title\":\"The full stack behind abundant intelligence\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-25\",\"matchedTerms\":[\"OpenAI\",\"RAS\",\"Microsoft\",\"URL\",\"API\",\"GPT-5.6\"],\"rank\":-14.657085376136065},{\"id\":\"july-correct-0018\",\"title\":\"AMD, Cerebras partner on joint Helios rack-scale AI inference platform\",\"sourceType\":\"labeled_article\",\"time\":\"2026-07\",\"matchedTerms\":[\"OpenAI\",\"RAS\",\"Meta\",\"Microsoft\",\"URL\",\"GPT-5.6\"],\"rank\":-13.306060693915867},{\"id\":\"july-correct-0015\",\"title\":\"AMD to join the optical interconnect party with 2027 Instinct GPUs\",\"sourceType\":\"labeled_article\",\"time\":\"2026-07\",\"matchedTerms\":[\"OpenAI\",\"Meta\",\"Microsoft\",\"URL\",\"GPT-5.6\"],\"rank\":-13.22542634630433},{\"id\":\"july-correct-0001\",\"title\":\"全球首颗2nm GPU来了！苏姿丰甩出“最强AI机架”，CPU性能干翻英伟达 - 智东西\",\"sourceType\":\"labeled_article\",\"time\":\"2026-07\",\"matchedTerms\":[\"OpenAI\",\"RAS\",\"NPU\",\"Meta\",\"GPT-5.6\"],\"rank\":-13.008845017892035}]" 采集批次: "2026年9月2日10点15分47秒" 采集批次ID: "20260902-101546-814" 去重键: "https://developers.openai.com/codex/models" --- Title: Models | ChatGPT Learn URL Source: https://developers.openai.com/codex/models Published Time: Wed, 02 Sep 2026 00:41:08 GMT Markdown Content: For the complete documentation index, see [llms.txt](https://developers.openai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to the page URL. 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desktop app Copy Page # Models Meet the AI models that power ChatGPT Work and Codex ![Image 3](https://developers.openai.com/images/codex/surface-icons/chatgpt-app.webp)ChatGPT desktop app Copy Page ## Choose a model In the ChatGPT desktop app, use the model and reasoning control beneath the composer to choose an available model and adjust its reasoning effort. Higher reasoning effort can improve results for complex tasks, but it takes longer and uses more tokens. Start with the default effort and increase it when the task needs deeper planning or analysis. **Ultra** mode goes beyond a single-agent run. It uses [subagents](https://developers.openai.com/codex/agent-configuration/subagents) to accelerate complex work, making it useful for larger tasks that can be split across subagents. 5.6 Sol Extra High Selections in this preview don't change your ChatGPT settings.5.6 Sol Extra High, 5 of 6.Use Left and Right arrow keys to adjust power. ## Choose a model These recommendations apply to **ChatGPT Work** on the web. Use the model and reasoning control beneath the composer to choose an available model and adjust its reasoning effort. Higher reasoning effort can improve results for complex tasks, but it takes longer and uses more tokens. Start with the default effort and increase it when the task needs deeper planning or analysis. **Ultra** mode goes beyond a single-agent run. It uses [subagents](https://developers.openai.com/codex/agent-configuration/subagents) to accelerate complex work, making it useful for larger tasks that can be split across subagents. 5.6 Sol Extra High Selections in this preview don't change your ChatGPT settings.5.6 Sol Extra High, 5 of 6.Use Left and Right arrow keys to adjust power. ## Choose a model In an interactive CLI session, use `/model` to switch models or adjust reasoning effort. You can also choose a model when you launch Codex with `--model` or its `-m` alias: `codex --model gpt-5.6` The same option works with non-interactive runs. For example: `codex exec -m gpt-5.6 "Review the current changes"` Higher reasoning effort can improve results for complex tasks, but it takes longer and uses more tokens. Start with the default effort and increase it when the task needs deeper planning or analysis. **Ultra** mode goes beyond a single-agent run. It uses [subagents](https://developers.openai.com/codex/agent-configuration/subagents) to accelerate complex work, making it useful for larger tasks that can be split across subagents. Interactive Codex CLI reasoning level selector Select Reasoning Level for gpt-5.6-sol 1.Low Fast responses with lighter reasoning 2.Medium (default)Balances speed and reasoning depth for everyday tasks 3.High Greater reasoning depth for complex problems 4.Extra high Extra high reasoning depth for complex problems 5.Max Maximum reasoning depth for the hardest problems ›6.Ultra (current)Maximum reasoning with automatic task delegation Press enter to confirm or esc to go back ## Choose a model Use the model switcher below the composer to choose an available model and reasoning effort. Higher reasoning effort can improve results for complex tasks, but it takes longer and uses more tokens. Start with the default effort and increase it when the task needs deeper planning or analysis. **Ultra** mode goes beyond a single-agent run. It uses [subagents](https://developers.openai.com/codex/agent-configuration/subagents) to accelerate complex work, making it useful for larger tasks that can be split across subagents. 5.6 Sol Extra High Selections in this preview don't change your ChatGPT settings.5.6 Sol Extra High, 5 of 6.Use Left and Right arrow keys to adjust power. [](https://developers.openai.com/codex/models)[](https://developers.openai.com/codex/models)[](https://developers.openai.com/codex/models)[](https://developers.openai.com/codex/models)[](https://developers.openai.com/codex/models) ## Recommended models ![Image 4: 5.6 Sol](https://developers.openai.com/images/api/models/gpt-5.6-sol.webp) 5.6 Sol Flagship GPT-5.6 model with the strongest capability for complex coding, computer use, research, and cybersecurity. codex -m gpt-5.6-sol Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access ![Image 5: 5.6 Terra](https://developers.openai.com/images/api/models/gpt-5.6-terra.webp) 5.6 Terra Balanced GPT-5.6 model for everyday work, with performance competitive with GPT-5.5 at a lower cost. codex -m gpt-5.6-terra Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access ![Image 6: 5.6 Luna](https://developers.openai.com/images/api/models/gpt-5.6-luna.webp) 5.6 Luna Fast and affordable GPT-5.6 model that delivers strong capability at the lowest cost in the family. codex -m gpt-5.6-luna Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access ![Image 7: 5.3 Codex Spark](https://developers.openai.com/images/codex/codex-wallpaper-2.webp) 5.3 Codex Spark Text-only research preview model optimized for near-instant, real-time coding iteration. Available to ChatGPT Pro users. codex -m gpt-5.3-codex-spark Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access Start with the default Power setting, which uses `gpt-5.6-sol` with medium reasoning. Move toward **Smarter** for deeper reasoning or **Faster** for faster, lower-cost work. Open **Advanced** when you want `gpt-5.6-luna` or a specific model, reasoning effort, or speed. ## Choosing Sol, Terra, and Luna Codex offers three GPT-5.6 models: **Sol** for detail and polish, **Terra** as the everyday workhorse, and **Luna** for clear, repeatable work. If you are unsure, start with Sol. ### Where each model shines * **Sol, for complex, open-ended work.** Choose Sol for ambiguous, difficult, or high-value tasks that need extra analysis, judgment, or polish, such as complex code changes, deep research, or polished documents. For narrower tasks, define what done looks like to keep the work focused. * **Terra, the pragmatic all-rounder.** Choose Terra for everyday work that needs strong reasoning and tool use when you do not need Sol's full depth. It is a natural starting point for work you previously gave GPT-5.5. * **Luna, for clear, repeatable tasks.** Choose Luna for specific, high-volume tasks when you know what a good result looks like, such as extraction, classification, transformation, and structured summaries. ### Pick a reasoning effort Use the lowest reasoning effort that produces the result you need. Increase it for tasks that need more planning, analysis, or checking. * **Light** in the ChatGPT desktop app, ChatGPT Work on the web, and IDE extension, or **Low** in the CLI, suits quick, well-scoped tasks. * **Medium** balances speed and depth for tasks that need more planning. * **High** and **Extra High** suit difficult work with multiple steps, sources, or tradeoffs. There is no exact mapping from GPT-5.5 reasoning efforts to GPT-5.6. Try a familiar task at a lower setting and adjust based on the result. ### Know when to use Max or Ultra **Max** gives the selected model more time to reason about a single task. Use it for the hardest problems, when depth matters more than speed or usage. If you don't see Max in your options, you'll have to enable it in your app settings. **Ultra** uses [subagents](https://developers.openai.com/codex/agent-configuration/subagents) to handle separate parts of a complex task in parallel. Choose it when you can divide the work into meaningful parts. Most tasks do not need Max or Ultra. If Ultra doesn't appear in the desktop app's model slider, go to **Settings**>**Configuration**, then turn on **Ultra in model picker slider**. ## Other models When you sign in with ChatGPT, Codex works best with the recommended models listed above. **GPT-5.4 and GPT-5.4 mini retire from Codex on August 31, 2026.** If you sign in with ChatGPT, replace `gpt-5.4` with `gpt-5.6-terra` and `gpt-5.4-mini` with `gpt-5.6-luna` in saved configurations, custom agents, and scheduled tasks. The OpenAI API and Codex authenticated with your own API key aren't affected. View other models ![Image 8: 5.5](https://developers.openai.com/images/api/models/gpt-5.5.jpg) 5.5 Previous-generation flagship model for complex coding, computer use, knowledge work, and research workflows. codex -m gpt-5.5 Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access ![Image 9: 5.4](https://developers.openai.com/images/api/models/gpt-5.4.jpg) 5.4 Flagship model for professional work with strong coding, reasoning, tool use, and agentic workflow capabilities. codex -m gpt-5.4 Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access ![Image 10: 5.4 Mini](https://developers.openai.com/images/api/models/gpt-5-mini.jpg) 5.4 Mini Fast, efficient mini model for responsive coding tasks and subagents. codex -m gpt-5.4-mini Copy command Capability Speed ChatGPT desktop app ChatGPT web Codex CLI Codex IDE extension Codex cloud ChatGPT Credits API Access You can also point Codex at any model and provider that supports either the [Chat Completions](https://platform.openai.com/docs/api-reference/chat) or [Responses APIs](https://platform.openai.com/docs/api-reference/responses) to fit your specific use case. Support for the Chat Completions API is deprecated and will be removed in future releases of Codex. ## Deprecated Codex models The `gpt-5.4` and `gpt-5.4-mini` models retire from Codex with ChatGPT sign-in on August 31, 2026. Replace `gpt-5.4` with `gpt-5.6-terra` and `gpt-5.4-mini` with `gpt-5.6-luna` in workspace defaults, saved model settings, managed configurations, custom agents, and scheduled tasks. The `gpt-5.2` and `gpt-5.3-codex` models are already deprecated in Codex when you sign in with ChatGPT. Update scripts, configuration files, and `codex exec --model` commands that still reference those models. The OpenAI API and Codex authenticated with your own API key aren't affected by the GPT-5.4 retirement. For current API model availability, see the [API models page](https://developers.openai.com/api/docs/models). ## Configure your default local model The ChatGPT desktop app, Codex CLI, and IDE extension use the same `config.toml`[configuration file](https://developers.openai.com/codex/config-file/config-basic). To specify a model, add a `model` entry to your configuration file. If you don't specify a model, the ChatGPT desktop app, Codex CLI, or IDE extension uses a recommended model. `model = "gpt-5.6"` ## Choose a model for cloud chats Currently, you can't change the default model for Codex cloud chats. Ask AI ## Docs agent Loading docs agent...