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.
import { streamText } from 'ai'
const result = streamText({ model: 'openai/gpt-5.2-chat', prompt: 'Why is the sky blue?'})GPT 5.2 Chat was released on December 11, 2025 on AI Gateway as the conversational variant of the GPT-5.2 model family. It brings GPT-5.2 generational improvements to dialogue-optimized inference, producing more natural, coherent, and contextually aware conversations than previous chat-focused models.
The model excels at maintaining context across extended conversations, adapting tone and detail level to the conversation flow, and handling complex multi-turn interactions where previous statements inform later responses. It supports the context window of 128K tokens, function calling, and multimodal input, providing the full feature set needed for sophisticated chat applications.
If you're building premium conversational products, GPT 5.2 Chat combines the GPT-5.2 generation's broad improvements with specific optimization for chat workloads.