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How to Access GPT-5.5 Now

GPT 5.5 is available now in ChatGPT and Codex, but OpenAI’s API docs still list API availability as “coming soon”; for API projects, use documented models such as gpt 5.4 until GPT 5.5 appears in the model docs. In ChatGPT, most eligible users should look in the model selector for Thinking or Pro; ChatGPT Go users s...

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Illustration of OpenAI GPT-5.5 with ChatGPT and Codex interface options.
OpenAI GPT-5.5: 7 smart moves toward a superapp futureGPT-5.5 access depends on the product surface: ChatGPT, Codex, or the API.

GPT-5.5 access depends on where you want to use it. OpenAI’s model documentation says GPT-5.5 is currently available in ChatGPT and Codex, while API availability is still “coming soon.” [1] That means ChatGPT and Codex are the places to check first; developers should wait for official API documentation before building against a GPT-5.5 model ID.

The fastest way to check for GPT-5.5

Start with the product surface you already use:

  • ChatGPT: open the model selector and look for Thinking for GPT-5.5 Thinking on supported paid plans. [7]
  • GPT-5.5 Pro: choose Pro if your account is on Pro, Business, Enterprise, or Edu. [7]
  • ChatGPT Go: open the tools menu with the + button in the chat box, then look for GPT-5.5 Thinking there. [7]
  • Codex: OpenAI lists Codex as a current GPT-5.5 surface. [1]
  • API: OpenAI’s model docs say GPT-5.5 API availability is coming soon, not generally available yet. [1]

ChatGPT access: where to look by plan

In ChatGPT, GPT-5.5 appears in different places depending on the plan. For most supported paid ChatGPT plans, the first place to check is the model selector; Thinking corresponds to GPT-5.5 Thinking. [7]

For Pro, Business, Enterprise, and Edu users, Pro is the option to look for when you want GPT-5.5 Pro. [7] ChatGPT Go works differently: GPT-5.5 Thinking is accessed from the tools menu opened with the + button in the chat box. [7]

Product or planWhere to lookWhat to select
Supported paid ChatGPT plansModel selectorThinking for GPT-5.5 Thinking [7]
Pro, Business, Enterprise, or EduModel selectorPro for GPT-5.5 Pro [7]
ChatGPT Go+ tools menu in the chat boxGPT-5.5 Thinking [7]
CodexCodexGPT-5.5 is listed as currently available there [1]
APIOpenAI API model docsGPT-5.5 API availability is still coming soon [1]

Codex access is separate from API access

OpenAI’s model documentation lists Codex alongside ChatGPT as a current place where GPT-5.5 is available. [1] If your goal is coding inside OpenAI’s Codex environment, Codex is the supported place to check now.

That does not mean GPT-5.5 is available through the public API. ChatGPT, Codex, and the API are separate access surfaces, and OpenAI’s current model documentation distinguishes between current ChatGPT/Codex availability and future API availability. [1]

API status: do not assume a GPT-5.5 model ID works yet

For developers, the key point is simple: GPT-5.5 is not listed as generally available through the API yet. OpenAI’s API models page says GPT-5.5 is currently available in ChatGPT and Codex, with API availability coming soon. [1]

Until GPT-5.5 appears in the official API model docs, do not build production code around an undocumented GPT-5.5 model name. OpenAI’s same model documentation recommends gpt-5.4 as the starting point for complex reasoning and coding, making it the safer documented default for API work today. [1]

Why GPT-5.5 may not show up in your account

If you do not see GPT-5.5, first make sure you are checking the right place for your plan: the model selector for most ChatGPT users, the + tools menu for ChatGPT Go, and Codex for coding use inside Codex. [7][1]

OpenAI has also published a public GPT-5.5 introduction, and access may still appear unevenly while availability rolls out across eligible accounts. [10][7] In practice, that means a missing option does not necessarily mean your account is broken or that API access is available elsewhere.

Quick checklist

  1. For ChatGPT: check the model selector for Thinking or Pro, depending on your plan. [7]
  2. For ChatGPT Go: use the + tools menu in the chat box to look for GPT-5.5 Thinking. [7]
  3. For Codex: check Codex directly, because OpenAI lists it as a current GPT-5.5 surface. [1]
  4. For API projects: wait for GPT-5.5 to appear in OpenAI’s API model documentation before using it in code. [1]
  5. For API work today: use documented guidance such as gpt-5.4 for complex reasoning and coding until GPT-5.5 API access is officially listed. [1]

Bottom line

To access GPT-5.5 now, check ChatGPT or Codex first. In ChatGPT, use the model selector for Thinking or Pro, while ChatGPT Go users should use the + tools menu in the chat box. [7] For developers, GPT-5.5 API access is still listed as coming soon, so use the documented API model guidance until OpenAI publishes GPT-5.5 API availability. [1]

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Key takeaways

  • GPT 5.5 is available now in ChatGPT and Codex, but OpenAI’s API docs still list API availability as “coming soon”; for API projects, use documented models such as gpt 5.4 until GPT 5.5 appears in the model docs.
  • In ChatGPT, most eligible users should look in the model selector for Thinking or Pro; ChatGPT Go users should open the + tools menu in the chat box.
  • If GPT 5.5 is missing, first verify the right product surface and plan because access may appear as a rollout rather than an instant switch for every account.

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What is the short answer to "How to Access GPT-5.5 Now"?

GPT 5.5 is available now in ChatGPT and Codex, but OpenAI’s API docs still list API availability as “coming soon”; for API projects, use documented models such as gpt 5.4 until GPT 5.5 appears in the model docs.

What are the key points to validate first?

GPT 5.5 is available now in ChatGPT and Codex, but OpenAI’s API docs still list API availability as “coming soon”; for API projects, use documented models such as gpt 5.4 until GPT 5.5 appears in the model docs. In ChatGPT, most eligible users should look in the model selector for Thinking or Pro; ChatGPT Go users should open the + tools menu in the chat box.

What should I do next in practice?

If GPT 5.5 is missing, first verify the right product surface and plan because access may appear as a rollout rather than an instant switch for every account.

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Research question

How to access GPT 5.5 now?

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Cited answer

Right now, GPT‑5.5 is being rolled out in ChatGPT and Codex for paid users, but it is not generally available in the API yet. If you don’t see it yet, that’s expected because the rollout is gradual. [7][10]

  • In ChatGPT, open the model selector and choose:

    • Thinking for GPT‑5.5 Thinking on supported paid plans. [7]
    • Pro for GPT‑5.5 Pro if you’re on Pro, Business, Enterprise, or Edu. [7]

  • If you’re on Go, GPT‑5.5 Thinking is accessed from the tools menu via the + button in the chat box, not the normal model picker. [7]

  • If you’re on Plus, Pro, Business, or Enterprise and still don’t see it, wait a bit and refresh/sign out-in, since OpenAI says availability is rolling out gradually. [7][10]

  • If you want it via API, there isn’t a normal public API launch yet; OpenAI says GPT‑5.5 and GPT‑5.5 Pro are coming to the API “very soon.” [7][10]

  • The current API docs still surface GPT‑5.4 as the latest guided model entry, which matches the “not in API today” rollout status. [1]

If you want, I can give you the exact steps for either:

  1. ChatGPT web/app, or
  2. API access/workarounds for now.

Sources

  • [1] Models | OpenAI APIdevelopers.openai.com

    Legacy APIs Assistants API Migration guide Deep dive Tools Resources Terms and policies Changelog Your data Permissions Rate limits Deprecations MCP for deep research Developer mode ChatGPT Actions Introduction Getting started Actions library Authentication...

  • [7] GPT-5.3 and GPT-5.5 in ChatGPT | OpenAI Help Centerhelp.openai.com

    GPT-5.3 and GPT-5.5 in ChatGPT OpenAI Help Center Image 1: OpenAI Language English United States Login 1. All Collections 2. ChatGPT 3. GPT-5.3 and GPT-5.5 in ChatGPT GPT-5.3 and GPT-5.5 in ChatGPT Updated: 4 minutes ago As of February 13, 2026, models GPT-...

  • [10] Introducing GPT-5.5 - OpenAIopenai.com

    Introducing OpenAI Privacy Filter Research Apr 22, 2026 Our Research Research Index Research Overview Research Residency Economic Research Latest Advancements GPT-5.5 GPT-5.4 GPT-5.3 Instant GPT-5.3-Codex Safety Safety Approach Security & Privacy Trust & Tr...