openai/gpt-oss-20b is available via Novita's serverless API, where you pay per token. There are several ways to call the API, including OpenAI-compatible endpoints with exceptional reasoning performance.
On-demand deployments allow you to use openai/gpt-oss-20b on dedicated GPUs with high-performance serving stack with high reliability and no rate limits.
Run queries immediately, pay only for usage
Use the following code examples to integrate with our API:
1from openai import OpenAI
2
3client = OpenAI(
4 api_key="<Your API Key>",
5 base_url="https://api.novita.ai/openai"
6)
7
8response = client.chat.completions.create(
9 model="openai/gpt-oss-20b",
10 messages=[
11 {"role": "system", "content": "You are a helpful assistant."},
12 {"role": "user", "content": "Hello, how are you?"}
13 ],
14 max_tokens=32768,
15 temperature=0.7
16)
17
18print(response.choices[0].message.content)200+ models, on-demand GPUs, and secure agent runtimes — unified under one API. Free to start, scales as you grow.