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gpt 5.5 has a bug #20107

Closed as duplicate
Closed as duplicate
gpt 5.5 has a bug#20107
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bugSomething isn't workingcontextIssues related to context management (including compaction)extensionIssues related to the VS Code extension

Description

@17816026642
17816026642
opened on Apr 29, 2026

What version of the IDE extension are you using?

latest

What subscription do you have?

gpt 5.5 is 258k context, is not 1M context

Which IDE are you using?

VS Code

What platform is your computer?

No response

What issue are you seeing?

gpt 5.5 is 258k context, is not 1M context

What steps can reproduce the bug?

Uploaded thread: 3a18e95a-1cfc-41d0-a3cb-5c97c8884dac

What is the expected behavior?

No response

Additional information

No response

Activity

  1. 17816026642
    added
    extensionIssues related to the VS Code extension
    on Apr 29, 2026
  2. github-actions
    added
    bugSomething isn't working
    contextIssues related to context management (including compaction)
    on Apr 29, 2026

  3. github-actions commented on Apr 29, 2026

    @github-actions
    github-actionsbot
    on Apr 29, 2026 – with GitHub Actions
    Contributor

    Potential duplicates detected. Please review them and close your issue if it is a duplicate.

    Powered by Codex Action

  4. etraut-openai
    closed this as a duplicateof 1m context window gone after Gpt 5.5 Release. #19208 on Apr 29, 2026
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