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GPT 5.2 Chat

GPT 5.2 Chat is the conversation-optimized variant of GPT-5.2, tuned for natural multi-turn dialogue with GPT-5.2 generation improvements in reasoning and instruction following.

Vision (Image)File InputTool UseReasoningImplicit Caching
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'openai/gpt-5.2-chat',
  prompt: 'Why is the sky blue?'
})
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Frequently Asked Questions

  • How does GPT 5.2 Chat differ from GPT-5 chat?

    It incorporates the GPT-5.2 generation's improvements in reasoning and instruction following, producing higher-quality conversations with better context tracking and more natural dialogue flow.

  • What context window does GPT 5.2 Chat support?

    128K tokens, enabling very long conversation histories to be maintained.

  • Is GPT 5.2 Chat suitable for non-chat tasks?

    It can handle them, but base GPT-5.2 is generally better for single-shot generation, batch processing, and structured output tasks.

  • Does GPT 5.2 Chat support function calling?

    Yes. It supports function calling, enabling conversational agents that interact with external APIs and tools during dialogue.

  • How does AI Gateway handle authentication for GPT 5.2 Chat?

    AI Gateway accepts a single API key or OIDC token for all requests. You don't embed OpenAI credentials in your application; AI Gateway routes and authenticates on your behalf.

  • What are typical latency characteristics?

    This page shows live throughput and time-to-first-token metrics measured across real AI Gateway traffic.