OpenAI: GPT-5.3 Chat is a text model from Openai, with a 128K-token context window, priced at $1.75 in · $14.00 out / 1M. On Fully Informed you can add OpenAI: GPT-5.3 Chat to a multi-model panel, where it answers independently, debates the other models and gets cross-checked for blind spots.
Vendor OpenaiType Text128K contextPrice $1.75 in · $14.00 out / 1M
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...
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...
What is the context window of OpenAI: GPT-5.3 Chat?
OpenAI: GPT-5.3 Chat supports a 128K-token context window.
How much does OpenAI: GPT-5.3 Chat cost?
OpenAI: GPT-5.3 Chat is priced at $1.75 in · $14.00 out / 1M via OpenRouter.
What are alternatives to OpenAI: GPT-5.3 Chat?
Comparable text models include OpenAI: GPT-3.5 Turbo, OpenAI: GPT-3.5 Turbo (older v0613), Anthropic: Claude Fable Latest, Anthropic Claude Haiku Latest.