All Models
GPT-5.3 Chat (latest)
Chat-tuned GPT model for conversational assistance, writing, and tool workflows
Available Providers (5)
| Provider | Model ID | Input Cost | Output Cost | Context | Max Output | Docs |
|---|---|---|---|---|---|---|
 OrcaRouter | openai/gpt-5.3-chat-latest | $1.75/MTok | $14/MTok | 128K | 16.4K | |
 OpenAI | gpt-5.3-chat-latest | $1.75/MTok | $14/MTok | 128K | 16.4K | |
 Merge Gateway | openai/gpt-5.3-chat-latest | $1.75/MTok | $14/MTok | 128K | 16.4K | |
 Cloudflare AI Gateway | openai/gpt-5.3-chat-latest | $1.75/MTok | $14/MTok | 128K | 16.4K | |
 Abacus | gpt-5.3-chat-latest | $1.75/MTok | $14/MTok | 400K | 128K |
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Structured Output