# GPT-5.5 Pro

GPT-5.5 Pro är en modell från OpenAI, lanserad den 2026-04-23. Kontextfönstret är 1 050 000 token. Den maximala utdatalängden är 128 000 token.

- Utvecklare: OpenAI
- Id: gpt-5.5-pro
- Enligt uppgifter: 2026-04-23T11:00:00.000Z
- Lanserad: 2026-04-23T00:00:00.000Z
- Upptäckt: 2026-10-07T19:45:27.953Z
  - [källänk](https://models.dev/#gpt-5-5-pro)
- Status: Lanserad
- Produktuppdatering: 2026-04-23
  - [källänk](https://openai.com/index/introducing-gpt-5-5/)
  - [källänk](https://openai.com/index/introducing-gpt-5-5)
- Tillgänglighet via API: 2026-04-24
  - [källänk](https://developers.openai.com/api/docs/changelog)
  - [källänk](https://openai.com/index/introducing-gpt-5-5)
- Kanonisk adress: https://alexgetman.com/sv/models/openai/gpt-5-5-pro/

## Frågor

### Hur stort är kontextfönstret för GPT-5.5 Pro?

Kontextfönstret är 1 050 000 token. Den maximala utdatalängden är 128 000 token.

### När lanserades GPT-5.5 Pro?

Den 2026-04-23.

## Tidslinje

- 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)
> -deep-research",
>             "o3-deep-research-2025-06-26",
>             "o4-mini-deep-research",
>             "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",
>         ],
>         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
- 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)
> int] = {
>     **_model_context_windows(
>         (
>             "gpt-5.4",
>             "gpt-5.4-2026-03-05",
>             "gpt-5.4-pro",
>             "gpt-5.4-pro-2026-03-05",
>             "gpt-5.5",
>             "gpt-5.5-2026-04-23",
>             "gpt-5.5-pro",
>             "gpt-5.5-pro-2026-04-23",
>             "gpt-5.6",
>             "gpt-5.6-sol",
>             "gpt-5.6-terra",
>             "gpt-5.6-luna",
>             "gpt-4.1",
>             "gpt-4.1-2025-04-14",
>             "gpt-4.1-mini",
>             "gpt-4.1-mini-2025-04-14",
>             "gpt-4.1-nano",
>             "gpt-4.1-nano-2025-04-14",
>         ),
>         1_047_576,
>     ),
>     **_model_context_windows(
>         (
>             "gpt-5",
>             "gpt-5-2025-08-07",
>             "gpt-5-codex",
>             "gpt-5-mini",
>             "gpt-5-mini-2025-08-07",
>             "gpt-5-nano",
>             "gpt-5-nano-2025-08-07",
>             "gpt-5
- 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)
> 3-pro'
>     | 'o3-pro-2025-06-10'
>     | 'o3-deep-research'
>     | 'o3-deep-research-2025-06-26'
>     | 'o4-mini-deep-research'
>     | '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` a
- 2026-11-13T22:06:17.930Z · [OpenAI · official articles](https://openai.com/index/introducing-gpt-5-5)
> We’ll bring GPT‑5.5 and GPT‑5.5 Pro to the API very soon
**Bekräftad användning**
- 2026-11-13T22:06:17.930Z · [OpenAI · official articles · Introducing GPT-5.5](https://openai.com/index/introducing-gpt-5-5)

## Källänkar

- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [openai-api-changelog](https://developers.openai.com/api/docs/changelog)
- [review](https://developers.openai.com/api/docs/models/gpt-5.5-pro)
- [openai-pricing](https://developers.openai.com/api/docs/pricing)
- [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](https://models.dev/#gpt-5-5-pro)
- [models.dev · catalogue](https://models.dev/#gpt-5.5-pro)
- [openai-articles](https://openai.com/index/introducing-gpt-5-5)
- [review](https://openai.com/index/introducing-gpt-5-5/)
- [OpenCode · discovery](https://opencode.ai/data/openai/gpt-5-5-pro)
- [OpenRouter](https://openrouter.ai/openai/gpt-5.5-pro)
- [OpenRouter](https://openrouter.ai/openai/gpt-5.5-pro:batch)
- [Vercel AI Gateway](https://vercel.com/ai-gateway)
- [VoxelBench · leaderboard](https://voxelbench.ai/leaderboard)

## Signaler

- [GPT-5.5 Pro: Produktuppdatering](https://alexgetman.com/sv/signals/2026/09/15/gpt-5-5-pro/)