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OpenAI
GPT-5.4 Pro
GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning for professional workloads.
Quick Stats
Context
1050K
Max Output
128K
Provider
OpenAI
Specs
2
Modalities
in textin imagein fileout text
Specs & List Price (per 1M tokens)
Quality
Input $30Output $180
Value
Input $30Output $135
Recommended Plan
GPT-5.4 Pro Starter Plan
Pay-as-you-go after top-up; $1 free credit for new users.
API Endpoint
Model ID
openai/gpt-5.4-procURL
curl https://intertoken.ai/v1/chat/completions \
-H "Authorization: Bearer $TOKENPORTAL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/gpt-5.4-pro",
"messages": [{"role": "user", "content": "Hello!"}]
}'Python
from openai import OpenAI
client = OpenAI(
base_url="https://intertoken.ai/v1",
api_key="$TOKENPORTAL_API_KEY",
)
resp = client.chat.completions.create(
model="openai/gpt-5.4-pro",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Start using this model
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