GPT-5.5 Instant

openai/gpt-5.5-instant

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

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Context window: 400K
Input: Document · Image · Text
Output: Text
Released: 2026-05-05

Max output: 128K
Knowledge cutoff: 2025-12-01
Weights: Closed
Capabilities: Attachments, Reasoning, Structured, Temperature, Tool call

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Performance

Overall capability

37.2/100

Coding: —
Reasoning: 30.6
Professional work: —
Knowledge & language: —


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ModelRegistry · Catalog updated 2026-11-05