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...
openai/gpt-5.3-chatGPT-5.3 Chat is an API model from OpenAI, released on Mar 3, 2026, with a context window of 128,000 tokens, pricing of $1.75 per million input tokens and $14 per million output tokens. It accepts file, image, text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.032.
Specs are sourced from OpenRouter and were last checked on Aug 2, 2026. Always confirm current pricing and limits with the provider before production use.
GPT-5.3 Chat supports a context window of 128,000 tokens.
GPT-5.3 Chat is listed at $1.75 per million input tokens and $14 per million output tokens on OpenRouter.
GPT-5.3 Chat was published on Mar 3, 2026.
GPT-5.3 Chat accepts file, image, text input and produces text output.