GPT-5.4

GPT-5.4 is part of OpenAI's GPT-5 generation, the company's frontier general-purpose line covering reasoning, coding, multimodal understanding, and agentic tool use. The GPT-5 family is tuned to dynamically allocate reasoning effort and to handle long, structured tasks reliably. Use it for demanding agent workflows, complex code generation, scientific reasoning, and any task where top-tier accuracy outweighs cost concerns.

Quick start

Use any OpenAI-compatible client. Just change base_url and your key.

from openai import OpenAI

client = OpenAI(
    api_key="tl-xxxxxxxxxxxxxxxxxxxxxxxx",
    base_url="https://api.thalam.ai/v1",
)

response = client.chat.completions.create(
    model="openai/gpt-5.4",
    messages=[
        {"role": "user", "content": "Hello from Thalam!"}
    ],
)

print(response.choices[0].message.content)