GPT-5.5

openai/gpt-5.5

OpenAI's frontier model for complex professional workloads, with stronger reasoning, reliability, and token efficiency on hard tasks.

Pricing

Specifications

Use GPT-5.5

Point your existing OpenAI SDK at xKiro and pass openai/gpt-5.5 as the model. Nothing else in your code changes.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.xkiro.com/v1",
    api_key="YOUR_XKIRO_KEY",
)

response = client.chat.completions.create(
    model="openai/gpt-5.5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Supported parameters

max_tokens · temperature · top_p · stop · frequency_penalty · presence_penalty · seed · stream · tools · tool_choice · response_format · structured_outputs · reasoning · include_reasoning

Related models

• GPT-5.4$2.50
• GPT-5.4 Mini$0.75
• GPT-5.6 Luna$0.1
• GPT-5.6 Sol$5.00
• GPT-5.6 Terra$1.00
• Fable 5$10.00