Reviewer's Guide

Updates ZenMux GPT-5.2 model configurations to use fully-qualified provider-prefixed model IDs and normalizes the GPT-5.2 Chat entry for consistent routing and naming.

Sequence diagram for ZenMux routing with provider-prefixed model IDs

sequenceDiagram
  actor Client
  participant RoutingLayer
  participant ZenMuxModelBank
  participant OpenAIProvider

  Client->>RoutingLayer: sendRequest(modelId: openai/gpt-5.2, payload)
  RoutingLayer->>ZenMuxModelBank: resolveModelCard(modelId: openai/gpt-5.2)
  ZenMuxModelBank-->>RoutingLayer: AIChatModelCard(provider: openai, id: openai/gpt-5.2)
  RoutingLayer->>OpenAIProvider: forwardRequest(modelId: gpt-5.2, payload)
  OpenAIProvider-->>RoutingLayer: response
  RoutingLayer-->>Client: response

  Client->>RoutingLayer: sendRequest(modelId: openai/gpt-5.2-chat, payload)
  RoutingLayer->>ZenMuxModelBank: resolveModelCard(modelId: openai/gpt-5.2-chat)
  ZenMuxModelBank-->>RoutingLayer: AIChatModelCard(provider: openai, id: openai/gpt-5.2-chat)
  RoutingLayer->>OpenAIProvider: forwardRequest(modelId: gpt-5.2-chat, payload)
  OpenAIProvider-->>RoutingLayer: response
  RoutingLayer-->>Client: response

Class diagram for updated ZenMux GPT-5.2 chat model configurations

classDiagram
  class AIChatModelCard {
    +string id
    +string displayName
    +string description
    +boolean enabled
    +number maxOutput
    +number contextWindowTokens
  }

  class GPT_5_2_Flagship {
    +id = openai/gpt-5.2
    +displayName = GPT-5.2
    +description = GPT-5.2 is a flagship model for coding and agentic workflows with stronger reasoning and long-context performance.
    +enabled = true
    +maxOutput = 128000
  }

  class GPT_5_2_Pro {
    +id = openai/gpt-5.2-pro
    +displayName = GPT-5.2 pro
    +description = GPT-5.2 Pro: a smarter, more precise GPT-5.2 variant (Responses API only), suited for harder problems and longer multi-turn reasoning.
    +enabled = true
    +maxOutput = 128000
  }

  class GPT_5_2_Chat {
    +id = openai/gpt-5.2-chat
    +displayName = GPT-5.2 Chat
    +description = GPT-5.2 Chat is the ChatGPT variant for experiencing the newest conversation improvements.
    +enabled = true
    +maxOutput = 16384
    +contextWindowTokens = 128000
  }

  AIChatModelCard <|-- GPT_5_2_Flagship
  AIChatModelCard <|-- GPT_5_2_Pro
  AIChatModelCard <|-- GPT_5_2_Chat

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