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GPT-5.5 Instant
Closed
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Tool use
Overview
Evaluations
Evaluation overview
Overall rank
#51
79.7 points · 202 models
Research rank
#42
89.6 points · 196 models
Data coverage
3 items
3 sources · updated through 2026-09-02
Domain performance
Research
#42 / 196
89.6
Vision
#30 / 82
79.5
Long context
#61 / 95
72.5
Evaluation highlights
All evaluations
Arena Text Rating
Reasoning · Arena.ai Text
1,473.56Elo
25
/ 375
Arena Vision Rating
Multimodal · Arena.ai Vision
1,278Elo
19
/ 133
Arena Document Rating
Long context · Arena.ai Document
1,402.96Elo
32
/ 33
Basic information
Context (input / output)
128K / -
Release date
2026-05
Input modalities
Text · Image
Output modalities
Text
Exact release date
2026-05-05
Related links
Official site
Version relationships
GPT-5.5 family
GPT-5.5
2026-04 · Same series
GPT-5.5 Pro
2026-04 · Same series
GPT-5.5 Instant
Current
2026-05 · Current model