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Field
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GPT-5.5 Instant
openai/gpt-5.5-instant
OrganizationOpenAI
FamilyGPT
Released2026-05-05
Context window400K
Max output128K
Modalities
DocumentInputImageInputTextInputTextOutput
ProvidersZenMux, OpenAI
WeightsClosed
Attachments
Native
Reasoning
Native
Parameters: reasoning
Tool call
Native
Parameters: tools
Structured
Native
Parameters: structured_outputs
Temperature
Native
Parameters: temperature
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