OpenAI Notes

Independent notes · 27 Sep 2026

Crixet, ChatGPT ads, and whether OpenAI is down

Prism replaced the Crixet editor. Ads are a real buy in Ads Manager. Outages are on status.openai.com. Plus is $20 a month.

Plus
$20/mo
Pro $200
New sign-ups paused 10 Sep 2026
Dev Day
29 Sep 2026, Fort Mason
Sora
App and API closed
Crixet
Now Prism

Index

Names people mix up

  1. 01
    Crixet is now Prism

    Crixet was a cloud LaTeX editor. OpenAI acquired it and turned the product into Prism, a free science workspace at prism.openai.com.

  2. 02
    OpenAI Prism

    Prism is OpenAI’s AI workspace for scientific writing, built on the Crixet editor. It uses a ChatGPT account at prism.openai.com.

  3. 03
    CGAT opens ChatGPT

    CGAT is not a product. openai.com/chat is the short path into ChatGPT. The assistant itself opens at chatgpt.com.

  4. 04
    Dale chat is DALL·E

    Dale chat is a misspelling of DALL·E. Image generation in ChatGPT now runs through ChatGPT Images, including the 2.0 release.

  5. 05
    What is SchoolAI?

    SchoolAI is a classroom AI product for teachers, separate from ChatGPT. The logo is on schoolai.com, not a file this site hosts.

  6. 06
    ChatGPT logo

    The ChatGPT logo is the OpenAI blossom. Official files and usage rules are on openai.com/brand. This page shows the mark and where to get it.

Status and account

  1. 01
    Why ChatGPT is not working

    When ChatGPT will not load, check status.openai.com first, then the account, the app version, and the usage cap. This site cannot reset a session.

  2. 02
    OpenAI account

    An OpenAI account is two logins: chatgpt.com for the assistant, and platform.openai.com for API keys. This site cannot sign you in.

  3. 03
    ChatGPT customer service

    ChatGPT support is the help center at help.openai.com, opened while you are signed in. This inbox cannot see your subscription or reset a password.

  4. 04
    ChatGPT for customer service

    How support teams use ChatGPT to draft replies, and where an agent or a workspace policy fits. This is not the OpenAI help desk.

Plans and billing

  1. 01
    How much is ChatGPT?

    ChatGPT Plus is $20 a month. Pro is listed at $100 and $200, with new $200 sign-ups paused. API usage is a separate bill.

  2. 02
    How to cancel a ChatGPT subscription

    Cancel ChatGPT Plus or Pro in Settings, Billing, on the store that charged you. Cancel at least 24 hours before renewal. Canceling is not a refund.

  3. 03
    ChatGPT Plus for students

    OpenAI offered ChatGPT Plus free for college students in the US and Canada through May. Check the help article before you rely on a new term.

  4. 04
    ChatGPT Plus free trial

    ChatGPT Plus free trials are invite promos. They are not the $20 plan and not the college offer. The rules are in OpenAI’s trial FAQ.

  5. 05
    OpenAI billing

    OpenAI billing splits in two: ChatGPT plan receipts in the app, and API spend on the platform organization overview.

  6. 06
    ChatGPT ads

    ChatGPT ads are a paid placement inside ChatGPT, bought in Ads Manager. Answers stay separate from the ad, and chats are not sold to advertisers.

Models and media

  1. 01
    GPT-6 and GPT-5.6

    People search GPT-6 and land on OpenAI’s GPT-5.6 post. GPT-5.6 ships as Luna, Terra, and Sol. There is no separate GPT-6 product page.

  2. 02
    ChatGPT 5.4

    ChatGPT 5.4 and 5.4 mini left the signed-in ChatGPT app on 31 August 2026. Both remain on the API and on Codex sessions that use an API key.

  3. 03
    ChatGPT 5.1

    ChatGPT 5.1 is an earlier ChatGPT model release. Newer pickers default to later 5.x models, including GPT-5.6.

  4. 04
    ChatGPT Images 2.0

    ChatGPT Images 2.0 is the image generator inside ChatGPT. You can also upload a photo and ask for an edit, within the content rules.

  5. 05
    Sora 2 price and shutdown

    Sora’s app closed on 26 April 2026. The API closed on 24 September 2026. There is no Sora 3. Listed API rates were per second of video.

  6. 06
    ChatGPT for writing

    Use ChatGPT to draft and revise prose. Canvas is the side-by-side editor. Prism is the separate workspace for scientific papers.

  7. 07
    ChatGPT Canvas

    ChatGPT Canvas is the side panel for editing a document or a code file while the chat stays open. It is part of ChatGPT, not a separate subscription.

  8. 08
    Deep research

    Deep research is ChatGPT’s multi-step web report. Deepsearch is the same query. It cites pages, and you still have to open them.

  9. 09
    ChatGPT Pulse

    ChatGPT Pulse is a proactive briefing from your chats and connected context. It is not a push for every message, and it is not ChatGPT Wrapped.

  10. 10
    ChatGPT Wrapped

    ChatGPT Wrapped is OpenAI’s year-in-review recap. It shows up when they run the campaign. It is not a monthly report and not Spotify.

  11. 11
    Sensitive content in ChatGPT

    ChatGPT has no Adult mode switch. Reduce sensitive content, under Settings and Safety, adds limits. Teens have it on by default.

Codex and the API

  1. 01
    Codex status and usage

    Check Codex uptime on status.openai.com, plan limits at chatgpt.com/codex/settings/usage, and the CLI with /status. API spend is a different page.

  2. 02
    Codex on iOS

    Codex on iPhone is the Remote view in the ChatGPT app. It drives a Mac or Windows machine that is already signed in. The files stay on that computer.

  3. 03
    Automatic review

    Codex automatic review swaps the human approval at the sandbox boundary for a reviewer agent. It does not widen what the sandbox allows.

  4. 04
    OpenAI Symphony

    Symphony is OpenAI’s open-source orchestrator for Codex, tied to Linear. It runs tasks and can expose a local status dashboard.

  5. 05
    OpenAI Agent Builder

    Agent Builder is the visual canvas in the OpenAI API docs for composing agents, tools, and handoffs. It is not the ChatGPT Agent button.

  6. 06
    ChatGPT Agent

    ChatGPT Agent works a task inside ChatGPT: it can browse and use tools, then come back with a result. It is not Agent Builder and not a Sponsored Agent.

  7. 07
    OpenAI API and API keys

    Create an OpenAI API key at platform.openai.com. Usage is billed apart from ChatGPT Plus. new-api is a separate open-source gateway, not the official API.

  8. 08
    Token counter

    Estimate an OpenAI token count at about four English characters per token, then confirm on platform.openai.com/tokenizer before you budget a prompt.

  9. 09
    GPT Realtime

    GPT Realtime is OpenAI’s low-latency speech model on the API. It is billed as API usage, not as a ChatGPT Plus add-on.

  10. 10
    OpenAI chatbot

    An OpenAI chatbot is a chat completion loop plus your instructions. Start on the API, keep the key on a server, and add tools only when a reply is not enough.

  11. 11
    Python programming with AI

    Use ChatGPT to learn Python by pasting the error and the few lines around it. Run the result locally. Do not paste secrets into the prompt.

  12. 12
    Comment prompt

    A comment in a coding prompt is a note the model still reads. In Python, # lines are for you and for the model, not a hidden channel.

  13. 13
    Creaticode

    Creaticode is a Scratch plugin that connects block coding to ChatGPT. It is a community project, not a model inside ChatGPT.

Work and study

  1. 01
    OpenAI careers

    OpenAI jobs are posted at openai.com/careers. ChatGPT careers are the same list. Applications go through that board, not through ChatGPT.

  2. 02
    Forward deployed engineer

    A forward deployed engineer ships OpenAI products inside a customer’s environment. OpenAI posts the role, including San Francisco, on its careers site.

  3. 03
    OpenAI internships

    OpenAI internships are listed under Emerging Talent on the careers site. Intern, internship, and internships are the same board.

  4. 04
    OpenAI Residency

    The OpenAI Residency is a research program with its own application at openai.com/residency. It is not the internship board and not a ChatGPT feature.

  5. 05
    OpenAI Academy

    OpenAI Academy is the free course library at openai.com/academy, with tracks for writing and workspace agents. It is not a university.

  6. 06
    Workplace agents

    OpenAI’s workspace-agents lesson is the Academy track for using agents at work. A workplace agent runs in a ChatGPT workspace, under an admin’s rules.

  7. 07
    OpenAI Frontier

    OpenAI Frontier is the enterprise platform for running agents across a company. It is not a ChatGPT Plus feature and not a model name.

  8. 08
    OpenAI Dev Day 2026

    OpenAI Dev Day 2026 is 29 September at Fort Mason in San Francisco. In-person applications are closed. The keynote livestream is free. Registration was $650.

  9. 09
    AI and compute

    AI and Compute is OpenAI’s 2018 essay on how fast training compute grew. The doubling claim is about that era’s largest runs, not a live price.

Questions

What happened to Crixet?

OpenAI acquired the LaTeX editor and shipped it as Prism. Open prism.openai.com with a ChatGPT account.

How much is ChatGPT Plus?

Plus is $20 a month. API usage is billed separately on platform.openai.com.

Why is ChatGPT not working?

Check status.openai.com first. If that page is green, update the app, try another browser, and confirm you are on the account that holds the plan.

Is this the OpenAI login?

No. Sign in only on chatgpt.com or platform.openai.com. OpenAI Notes is an independent guide.