gpt-5.5-2026-04-23

OpenAI · Reasoning

Available

Context window: 1.1M
Input / 1M: $10.00
Cache / 1M: $1.00
Output / 1M: $45.00

Call this model

request.py

from openai import OpenAI

client = OpenAI(
    base_url="https://api.tokener.ai/v1",
    api_key="sk-tk-••••••••••••",
)

response = client.chat.completions.create(
    model="gpt-5.5-2026-04-23",
    messages=[{"role": "user", "content": "Explain retrieval augmented generation."}],
)