All Models

GPT 5.3 Chat Latest

gptReasoningTool CallingAttachmentsStructured Output

Chat-tuned GPT model for conversational assistance, writing, and tool workflows

Providers2
ReleasedMar 1, 2026
Input Modalitiestext, image, pdf
Output Modalitiestext
Tarsk Usecoding

Available Providers (2)

ProviderModel IDInput CostOutput CostContextMax OutputDocs
Merge Gatewayopenai/gpt-5.3-chat-latest$1.75/MTok$14/MTok128K16.4K
Abacusgpt-5.3-chat-latest$1.75/MTok$14/MTok400K128K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output