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OpenAI: GPT-5.3 Chat
openai/gpt-5.3-chat
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...
specs & pricing
- Type
- text
- Provider
- openai
- Model ID
- openai/gpt-5.3-chat
- Capabilities
- vision, tools
- Context window
- 128K tokens
- Input price
- $1.93 / 1M tokens
- Output price
- $15.40 / 1M tokens
Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.