GPT-5.3 Chat (latest)
openai/gpt-5.3-chat-latest
Chat-tuned GPT model for conversational assistance, writing, and tool workflows
Capabilities
ReasoningNo
Tool callingYes
Structured outputYes
TemperatureSupported
AttachmentYes
Open weightsNo
Limits
Context128,000 tokens
Max inputN/A
Max output16,384 tokens
Details
Familygpt
Knowledge cutoff2025-08-31
Release date2026-03-03
Last updated2026-03-03
Modalities
Inputtext, image
Outputtext
Community Rating
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Pricing
Cost per 1M tokens
InputN/A
OutputN/A