gpt-5 support

[priyanshujain]

Summary by CodeRabbit

• New Features
  • Added compatibility with OpenAI gpt-5 models, with automatic handling of temperature and token limits consistent with other reasoning models.
• Chores
  • Updated default model selections:
    • OpenAI default: openai:gpt-5 (replaces openai:gpt-4o).
    • Anthropic default: anthropic:claude-sonnet-4-20250514 (replaces anthropic:claude-3-5-sonnet-20241022).
  • Minor improvements to API key validation behavior for gpt-5 models.

[coderabbitai]

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Review failed

The pull request is closed.

Walkthrough

Updates add gpt-5 handling to the OpenAI provider by aligning parameter logic with o4/o1, and adjust default model selections in credential resolution: OpenAI now defaults to gpt-5, and Anthropic to claude-sonnet-4-20250514. No public API signatures change.

Changes

Cohort / File(s)	Summary of Changes
OpenAI provider parameter handling cli/src/infragpt/llm/providers/openai_provider.py	Treat gpt-5 like o4/o1 in API key validation and request construction: use max_completion_tokens instead of max_tokens; default temperature branch includes gpt-5.
Default model selection cli/src/infragpt/main.py	Update defaults in get_credentials_v2: OpenAI default from openai:gpt-4o to openai:gpt-5; Anthropic default from anthropic:claude-3-5-sonnet-20241022 to anthropic:claude-sonnet-4-20250514.

Sequence Diagram(s)

sequenceDiagram
  autonumber
  actor User
  participant CLI as CLI get_credentials_v2
  participant Cfg as Env/Config

  User->>CLI: Invoke command (no model_string)
  CLI->>Cfg: Read provider env/config
  alt Provider = openai
    CLI->>CLI: Set default model = openai:gpt-5
  else Provider = anthropic
    CLI->>CLI: Set default model = anthropic:claude-sonnet-4-20250514
  end
  CLI-->>User: Credentials + selected default model

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sequenceDiagram
  autonumber
  participant Client as OpenAIProvider
  participant Builder as _build_request
  participant API as OpenAI API

  Client->>Builder: Build chat/completions request (model, kwargs)
  alt Model starts with o4/o1/gpt-5
    note right of Builder: Uses max_completion_tokens<br/>Temperature defaults to 1.0 unless specified
    Builder->>API: {model, messages, max_completion_tokens, (temperature?)}
  else Other models
    note right of Builder: Uses max_tokens<br/>Temperature from kwargs (default 0.0)
    Builder->>API: {model, messages, max_tokens, temperature}
  end

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

I twitch my ears at version five,
New defaults hop where prompts arrive.
Tokens split by model kind,
Cool or warm, the temps aligned.
With keys in paw, I test and see—
A snappy leap for LLM spree! 🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between f466de4 and 487b75e.

📒 Files selected for processing (2)

• cli/src/infragpt/llm/providers/openai_provider.py (2 hunks)
• cli/src/infragpt/main.py (1 hunks)

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• Commit unit tests in branch fix-gpt-5-support

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