# GPT-5.1-Codex-Max

GPT-5.1-Codex-Max হলো OpenAI-এর একটি মডেল, প্রকাশিত হয় 2025-11-19। কনটেক্সট উইন্ডো হলো 4,00,000 টোকেন। সর্বোচ্চ আউটপুট হলো 1,28,000 টোকেন।

- নির্মাতা: OpenAI
- Id: gpt-5.1-codex-max
- প্রতিবেদন অনুযায়ী: 2025-11-18T00:00:00.000Z
- প্রকাশিত: 2025-11-19T00:00:00.000Z
- শনাক্তকরণ: 2026-09-17T17:42:08.188Z
  - [প্রমাণের লিঙ্ক](https://developers.openai.com/api/docs/changelog)
- অবস্থা: প্রকাশিত
- পণ্যের হালনাগাদ: 2025-11-19
  - [প্রমাণের লিঙ্ক](https://openai.com/index/gpt-5-1-codex-max/)
- API-তে উপলব্ধ: 2025-12-04
  - [প্রমাণের লিঙ্ক](https://developers.openai.com/api/docs/changelog)
- মূল ঠিকানা: https://alexgetman.com/bn/models/openai/gpt-5-1-codex-max/

## প্রশ্ন

### GPT-5.1-Codex-Max-এর কনটেক্সট উইন্ডো কত?

কনটেক্সট উইন্ডো হলো 4,00,000 টোকেন। সর্বোচ্চ আউটপুট হলো 1,28,000 টোকেন।

### GPT-5.1-Codex-Max কবে প্রকাশিত হয়?

2025-11-19।

## সময়রেখা

- 2026-09-17T17:42:08.188Z · [OpenAI · API changelog](https://developers.openai.com/api/docs/changelog)
> Released gpt-5.1-codex-max to the Responses API
- 2026-10-07T19:17:54.872Z · [OpenAI · Codex changelog](https://developers.openai.com/codex/changelog/#codex-2025-11-18)
> Starting today, the CLI and IDE Extension will default to gpt-5.1-codex-max for users that are signed in with ChatGPT
- 2026-10-07T19:17:54.872Z · [OpenAI · Codex changelog](https://developers.openai.com/codex/changelog/#codex-2026-04-07)
- 2026-11-05T00:01:53.188Z · [OpenAI API](https://api.openai.com/v1/models)
- 2026-11-10T17:58:10.980Z · [GitHub · openai/openai-agents-js · code](https://github.com/openai/openai-agents-js/blob/7589b9c40120b89a7d2d28a5a60b4defe1ed7bf5/packages/agents-core/src/sandbox/capabilities/compaction.ts)
> ',
>   'gpt-4.1-mini-2025-04-14',
>   'gpt-4.1-nano',
>   'gpt-4.1-nano-2025-04-14',
> ]);
> 
> const SANDBOX_CONTEXT_WINDOWS_400K = new Set([
>   'gpt-5',
>   'gpt-5-codex',
>   'gpt-5-mini',
>   'gpt-5-nano',
>   'gpt-5-pro',
>   'gpt-5.1',
>   'gpt-5.1-codex',
>   'gpt-5.1-codex-max',
>   'gpt-5.1-codex-mini',
>   'gpt-5.2',
>   'gpt-5.2-codex',
>   'gpt-5.2-codex-cyber',
>   'gpt-5.2-pro',
>   'gpt-5.3-codex',
>   'gpt-5.3-codex-spark',
>   'gpt-5.4-mini',
>   'gpt-5.4-nano',
> ]);
> 
> const SANDBOX_CONTEXT_WINDOWS_200K = new Set([
>   'codex-mini-latest',
>   'o1',
>   'o1-2024-12-17',
>   'o1-pro',
>   'o3',
>   'o3-2025-04-16',
>   'o3-mini',
>   'o3-pro',
>   'o3-deep-research',
>   'o4-mini',
>   'o4-mini-2025-04-16',
>   'o4-mini-deep-research',
> ]);
> 
> const SANDBOX_CONTEXT_WINDOWS_128K = new Set([
>   'gpt-4o',
>   'gpt-4o-2024-08-06',
>   'gpt-4o-mini',
>   'gpt-4o-mini-2024-07-18',
>   'gpt-5-chat-latest',
>   'gpt-5.1-chat-latest',
>   'gpt-5.2-chat-latest',
>   
- 2026-11-10T17:58:16.002Z · [GitHub · openai/openai-python · code](https://github.com/openai/openai-python/blob/0ebd00647f6088fb100b03440c6c4554bbab549d/src/openai/types/beta/beta_responses_client_event.py)
>     "computer-use-preview",
>             "computer-use-preview-2025-03-11",
>             "gpt-5.5-pro",
>             "gpt-5.5-pro-2026-04-23",
>             "gpt-5-codex",
>             "gpt-5-pro",
>             "gpt-5-pro-2025-10-06",
>             "gpt-5.1-codex-max",
>             "gpt-daybreak-blue-latest",
>             "gpt-daybreak-red-latest",
>             "gpt-5.6-cyber",
>             "gpt-6-cyber",
>             "gpt-rosalind-research",
>             "gpt-6-rosalind",
>         ],
>         str,
>         None,
>     ] = None
>     """Model ID used to generate the response, like `gpt-6-astra`.
> 
>     OpenAI offers a wide range of models with different capabilities, performance
>     characteristics, and price points. Refer to the
>     [model guide](https://developers.openai.com/api/docs/models) to browse and
>     compare available models.
> 
>     Deprecated values:
> 
>     - "gpt-5.4-nano", "gpt-5.4-nano-2026-03-17",
- 2026-11-10T17:59:50.472Z · [GitHub · openai/openai-agents-python · code](https://github.com/openai/openai-agents-python/blob/d68961657843c7d81dfc25834484f8aac2957eb3/src/agents/sandbox/capabilities/compaction.py)
> mini-2025-08-07",
>             "gpt-5-nano",
>             "gpt-5-nano-2025-08-07",
>             "gpt-5-pro",
>             "gpt-5-pro-2025-10-06",
>             "gpt-5.1",
>             "gpt-5.1-2025-11-13",
>             "gpt-5.1-codex",
>             "gpt-5.1-codex-max",
>             "gpt-5.1-codex-mini",
>             "gpt-5.2",
>             "gpt-5.2-2025-12-11",
>             "gpt-5.2-codex",
>             "gpt-5.2-pro",
>             "gpt-5.2-pro-2025-12-11",
>             "gpt-5.3-codex",
>             "gpt-5.4-mini",
>             "gpt-5.4-mini-2026-03-17",
>             "gpt-5.4-nano",
>             "gpt-5.4-nano-2026-03-17",
>         ),
>         400_000,
>     ),
>     **_model_context_windows(
>         (
>             "codex-mini-latest",
>             "o1",
>             "o1-2024-12-17",
>             "o1-pro",
>             "o1-pro-2025-03-19",
>             "o3",
>             "o3-2025-04-16",
>             "o3-deep-research",
> 
- 2026-11-10T18:00:44.369Z · [GitHub · openai/codex · code](https://github.com/openai/codex/blob/82e6bacb9c6950d3b56cb153847fa80bdd698053/codex-rs/config/src/types.rs)
> t model switch reminder.
>     pub hide_rate_limit_model_nudge: Option<bool>,
>     /// Tracks whether the user has seen the model migration prompt
>     pub hide_gpt5_1_migration_prompt: Option<bool>,
>     /// Tracks whether the user has seen the gpt-5.1-codex-max migration prompt
>     #[serde(rename = "hide_gpt-5.1-codex-max_migration_prompt")]
>     pub hide_gpt_5_1_codex_max_migration_prompt: Option<bool>,
>     /// Tracks acknowledged model migrations as old->new model slug mappings.
>     #[serde(default)]
>     pub model_migrations: BTreeMap<String, String>,
>     /// Tracks scopes where external config migration prompts should be suppressed.
>     #[serde(default)]
>     pub external_config_migration_prompts: ExternalConfigMigrationPrompts,
> }
> 
> pub use crate::skills_config::BundledSkillsConfig;
> pub use crate::skills_config::SkillConfig;
> pub use crate::skills_config::SkillsConfig;
> 
> /// Default activat
কোডের এই উল্লেখটি ব্যবহৃত মডেল শনাক্তকারীর প্রমাণ নয়।
- 2026-11-10T20:45:07.786Z · [GitHub · openai/codex · code](https://github.com/openai/codex/blob/c9bbed2dae6aa1d3a0057001dec64d08e7882a9f/codex-rs/tui/src/chatwidget/model_popups.rs)
> rt_label(effort);
>             format!("⚠ {effort_label} reasoning effort can quickly consume Plus plan rate limits")
>         });
>         let warn_for_model = preset.model.starts_with("gpt-5.1-codex")
>             || preset.model.starts_with("gpt-5.1-codex-max")
>             || preset.model.starts_with("gpt-5.2");
> 
>         let mut all_choices: Vec<ReasoningEffortConfig> = supported
>             .iter()
>             .map(|option| option.effort.clone())
>             .collect();
>         if all_choices.is_empty() {
>             all_choices.push(default_effort.clone());
>         }
>         let (choices, advanced_choices): (Vec<_>, Vec<_>) = all_choices
>             .into_iter()
>             .partition(|effort| !Self::is_advanced_reasoning_effort(effort));
> 
>         if choices.len() == 1 && advanced_choices.is_empty() {
>             let selected_effort = choices.first().cloned();
>             let selected
- 2026-11-12T18:45:20.401Z · [GitHub · openai/openai-node · code](https://github.com/openai/openai-node/blob/b579bcb3e586d22269ffe6fe504653a0e05acbe8/src/resources/beta/responses/responses.ts)
> arch'
>     | 'o4-mini-deep-research-2025-06-26'
>     | 'computer-use-preview'
>     | 'computer-use-preview-2025-03-11'
>     | 'gpt-5.5-pro'
>     | 'gpt-5.5-pro-2026-04-23'
>     | 'gpt-5-codex'
>     | 'gpt-5-pro'
>     | 'gpt-5-pro-2025-10-06'
>     | 'gpt-5.1-codex-max'
>     | 'gpt-daybreak-blue-latest'
>     | 'gpt-daybreak-red-latest'
>     | 'gpt-5.6-cyber'
>     | 'gpt-6-cyber'
>     | 'gpt-rosalind-research'
>     | 'gpt-6-rosalind'
>     | (string & {});
> 
>   /**
>    * The object type of this resource - always set to `response`.
>    */
>   object: 'response';
> 
>   /**
>    * An array of content items generated by the model.
>    *
>    * - The length and order of items in the `output` array is dependent on the
>    *   model's response.
>    * - Rather than accessing the first item in the `output` array and assuming it's
>    *   an `assistant` message with the content generated by the model, you might
>    *   consider usin
- 2026-11-14T00:08:04.818Z · [OpenAI · official articles](https://openai.com/index/introducing-gpt-5-2-codex)
**নিশ্চিত ব্যবহার**
- 2026-11-14T00:08:04.818Z · [OpenAI · official articles · Introducing GPT-5.2-Codex](https://openai.com/index/introducing-gpt-5-2-codex)

## প্রমাণের লিঙ্ক

- 2026-11-05T00:01:53.188Z: উৎস থেকে এন্ট্রি সরানো হয়েছে · OpenAI API · `gpt-5.1-codex-max`

## প্রমাণের লিঙ্ক

- [OpenAI API](https://api.openai.com/v1/models)
- [openai-api-changelog](https://developers.openai.com/api/docs/changelog)
- [review](https://developers.openai.com/api/docs/models/gpt-5.1-codex-max)
- [OpenAI · Codex changelog](https://developers.openai.com/codex/changelog/#codex-2025-11-18)
- [OpenAI · Codex changelog](https://developers.openai.com/codex/changelog/#codex-2026-04-07)
- [GitHub · openai/codex · code](https://github.com/openai/codex/blob/82e6bacb9c6950d3b56cb153847fa80bdd698053/codex-rs/config/src/types.rs)
- [GitHub · openai/codex · code](https://github.com/openai/codex/blob/c9bbed2dae6aa1d3a0057001dec64d08e7882a9f/codex-rs/tui/src/chatwidget/model_popups.rs)
- [GitHub · openai/openai-agents-js · code](https://github.com/openai/openai-agents-js/blob/7589b9c40120b89a7d2d28a5a60b4defe1ed7bf5/packages/agents-core/src/sandbox/capabilities/compaction.ts)
- [GitHub · openai/openai-agents-python · code](https://github.com/openai/openai-agents-python/blob/d68961657843c7d81dfc25834484f8aac2957eb3/src/agents/sandbox/capabilities/compaction.py)
- [GitHub · openai/openai-node · code](https://github.com/openai/openai-node/blob/b579bcb3e586d22269ffe6fe504653a0e05acbe8/src/resources/beta/responses/responses.ts)
- [GitHub · openai/openai-python · code](https://github.com/openai/openai-python/blob/0ebd00647f6088fb100b03440c6c4554bbab549d/src/openai/types/beta/beta_responses_client_event.py)
- [models.dev · catalogue](https://models.dev/#gpt-5.1-codex-max)
- [review](https://openai.com/index/gpt-5-1-codex-max/)
- [openai-articles](https://openai.com/index/introducing-gpt-5-2-codex)
- [OpenCode · discovery](https://opencode.ai/data/openai/gpt-5-1-codex-max)
- [OpenRouter](https://openrouter.ai/openai/gpt-5.1-codex-max)
- [OpenAI · deprecations](https://platform.openai.com/docs/deprecations)

## সংকেত

- [GPT-5.1-Codex-Max: পণ্যের হালনাগাদ](https://alexgetman.com/bn/signals/2026/09/22/gpt-5-1-codex-max/)