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GPT-5.5 Instant

openai/gpt-5.5-instant

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

Source-linkedClosed weightsReleased 2026-05-05
Report data
Context window400K
Maximum output128K
Provider offers1
Knowledge cutoff2025-12-01
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputYes
AttachmentsYes
Temperature controlYes
Open weightsNo
Creator
OpenAI
Family
Not documented
Modalities
Image, Pdf, Text
License
Not documented
Release date
2026-05-05
Model ID
openai/gpt-5.5-instant
Market availability

Provider pricing

Report price →
Providers offering GPT-5.5 Instant
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
ZenMuxopenai/gpt-5.5-instant400K$5.000$30.000$0.500R T S
View
{
  "cache_read": 0.5,
  "input": 5,
  "output": 30
}
Evidence

Published benchmark results

Insufficient benchmark coverage. ModelBench does not infer a score from price, context size, or model name.