Add gpt-4.1 family & gpt-4.5-preview support

[stephen-zeng]

💻 变更类型 | Change Type

• feat
• fix
• refactor
• perf
• style
• test
• docs
• ci
• chore
• build

🔀 变更说明 | Description of Change

添加了gpt-4.1模型家族和gpt-4.5预览模型的支持，更新了判断视觉模型的正则表达式，添加了gpt-4.1家族和gpt-4.5-preview的知识截止时间

📝 补充信息 | Additional Information

Summary by CodeRabbit

• New Features
  • Added support for new GPT-4.1 and GPT-4.5-preview model variants, including mini and nano versions, with updated knowledge cutoff information.
  • Enhanced model recognition to include the latest GPT-4.1 variants as vision-capable models.

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[coderabbitai]

Walkthrough

This change updates the app/constant.ts file to add support for several new GPT model variants, including multiple GPT-4.1 variants and GPT-4.5-preview models. It extends the KnowledgeCutOffDate record with eight new entries associating these models with their respective cutoff dates. The VISION_MODEL_REGEXES array is updated to include a regex matching GPT-4.1 variants, marking them as vision-capable. The openaiModels array is expanded to include all eight new GPT model names. No other files or logic are affected.

Changes

File(s)	Change Summary
app/constant.ts	Added eight new GPT model variants to KnowledgeCutOffDate and openaiModels; updated VISION_MODEL_REGEXES with /gpt-4\.1/ regex.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant App
    participant Constants

    User ->> App: Request model info
    App ->> Constants: Lookup model in openaiModels
    Constants -->> App: Return model info (includes new GPT-4.1 and GPT-4.5-preview variants)
    App ->> Constants: Check KnowledgeCutOffDate for model
    Constants -->> App: Return cutoff date for new GPT variants
    App ->> Constants: Match model with VISION_MODEL_REGEXES
    Constants -->> App: Identify GPT-4.1 variants as vision-capable
    App -->> User: Respond with updated model capabilities

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Possibly related PRs

• ChatGPTNextWeb/NextChat#5233: Adds new GPT model identifiers to KnowledgeCutOffDate and openaiModels, similar to this PR.
• ChatGPTNextWeb/NextChat#5057: Expands supported GPT models in the same constants, overlapping with this PR’s changes.
• ChatGPTNextWeb/NextChat#5744: Adds GPT-4.1 and GPT-4.5-preview variants to the same constants, closely related to this update.

Suggested reviewers

• lloydzhou

Poem

A hop and a skip, new models appear,
GPT-4.1 variants, the future is here!
With vision and knowledge, their power expands,
All tucked in constants, at developers' hands.
A whisk of the code, a twitch of the nose,
The rabbit approves—let progress compose!
🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between 619fa51 and 1d0038f.

📒 Files selected for processing (1)

• app/constant.ts (3 hunks)

✅ Files skipped from review due to trivial changes (1)

• app/constant.ts

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[stephen-zeng]

解决Issue #6449

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

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Solve Issue #6449