G
GPT-5.5 Pro
OpenAI
🧠 Language Model
OpenAI premium tier with deep reasoning. April 2026.
Specifications
Context Window272,000 tokens
Max Output128,000 tokens
Speed●●●●● Average
ModalitiesInput: text, image · Output: text
FeaturesVision: Yes Tools: Yes Streaming: Yes
Pricing
Contact for pricing