All models
gpt-5.5
OpenAI
gpt-5.5Default frontier GPT for coding, computer use, research, and knowledge work
Context 1.1MReasoningToolsFilesVision
Pricing
Entry tier — longer context costs moreInput
S$6.48S$6.22/M
Output
S$38.89S$37.33/M
Cache read
Reusing a prompt already cached upstream
S$0.648S$0.622/M
Cache write
Storing a prompt for later reuse
Not offered
Struck-through figures are the vendor's published list price.
Performance
Loading throughput, latency, and success rate…
Quick start
Full documentationThe API is OpenAI-compatible — point the base URL here and pass the model id.
cURL
curl https://api.lulutokens.ai/v1/chat/completions \ -H "Authorization: Bearer $LULU_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "gpt-5.5", "messages": [{"role": "user", "content": "Hello"}] }'Python
from openai import OpenAIclient = OpenAI(base_url="https://api.lulutokens.ai/v1", api_key="LULU_API_KEY")response = client.chat.completions.create( model="gpt-5.5", messages=[{"role": "user", "content": "Hello"}],)Endpoints:openaiopenai-responseanthropic