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GPT-5.5

OpenAI
Announcement
GPT-5.5 launch post cover

Cost/1M tokens

input
$5.00
cached
$0.50
output
$30.00
Context
1.1Mtokens
Released
6mo ago

Specifications

Model

Developer
OpenAI
Family
GPTGPT-5.5
Type
Language model
Released
April 23, 2026
Model ID
openai/gpt-5.5

Capabilities

Input → output
File, image, text → Text
Max output
128K tokens
Tokenizer
GPT
Knowledge cutoff
2025-12-01

Weights

Openness
Closed

Sources:models.devOpenRouter

Metadata synced Nov 3, 2026, 11:17 PM UTC

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