OpenAI: GPT-5.3 Chat

openai/gpt-5.3-chat

Released Mar 3, 2026128,000 context

$1.75/M input tokens$14/M output tokens$100/K web search

GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly reduces unnecessary refusals, caveats, and overly cautious phrasing that can interrupt conversational flow.

OpenAI: GPT-5.3 Chat

openai/gpt-5.3-chat

Released Mar 3, 2026128,000 context

$1.75/M input tokens$14/M output tokens$100/K web search

GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly reduces unnecessary refusals, caveats, and overly cautious phrasing that can interrupt conversational flow.

Recent activity on GPT-5.3 Chat

Total usage per day on OpenRouter

Prompt

54.3M

Completion

3.25M