feat(models): add support for GPT OSS 120B and 20B

[steebchen]

Introduce two new models, "GPT OSS 120B" and "GPT OSS 20B," with specific configurations for improved flexibility and functionality.

Summary by CodeRabbit

• New Features
  • Added two new AI models, "GPT OSS 120B" and "GPT OSS 20B," available exclusively through the Groq provider. Both models support streaming, tool usage, and JSON output, with distinct pricing and large context sizes.

[coderabbitai]

Walkthrough

Two new model definitions, "gpt-oss-120b" and "gpt-oss-20b," were added to the openaiModels array in the OpenAI models module. Both are associated with the "groq" provider, include pricing and capability details, and have jsonOutput enabled.

Changes

Cohort / File(s)	Change Summary
OpenAI Model Additions packages/models/src/models/openai.ts	Added two new model definitions ("gpt-oss-120b" and "gpt-oss-20b") to the exported openaiModels array, specifying provider, pricing, context size, max output tokens, streaming support, capabilities, and JSON output flag.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant ModelRegistry
    participant GroqProvider

    User->>ModelRegistry: Request available OpenAI models
    ModelRegistry-->>User: Return list including "gpt-oss-120b" and "gpt-oss-20b"
    User->>GroqProvider: Request inference using "gpt-oss-120b" or "gpt-oss-20b"
    GroqProvider-->>User: Return model output

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~5-10 minutes

Possibly related PRs

• feat(models): add family field to model schema #518: Introduced the family field to the model schema, which is directly relevant as the new models use the "openai" family designation.

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Reviewing files that changed from the base of the PR and between b675272 and 60ff733.

📒 Files selected for processing (1)

• packages/models/src/models/openai.ts (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/models/src/models/openai.ts

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