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GPT-5.5 Instant

openai/gpt-5.5-instant

OpenAI / GPT

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Compact GPT model for low-latency assistance and high-volume workloads

Released
2026-05-05
Context window
400K
Max output
128K
Weights
Closed
Modalities
TextInputImageInputDocumentInputTextOutput
Capabilities
AttachmentsReasoningTool callStructuredTemperature
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