GPT 5 Nano API
openai/gpt-5-nano
Call GPT 5 Nano through UberLLM’s OpenAI-compatible API — from $0.0200/M input and $0.2000/M output, routed automatically to the cheapest healthy provider. OpenAI · 400,000 token context. No inference markup.
GPT 5 Nano pricing & providers
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| Surplus Intelligencebest | $0.0200 | $0.2000 |
| OpenRouter | $0.0500 | $0.4000 |
How to use GPT 5 Nano with the OpenAI SDK
Already using OpenAI or OpenRouter? Change one line — the base URL — and call GPT 5 Nano with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.
from openai import OpenAI
client = OpenAI(
base_url="https://api.uberllm.dev/v1",
api_key="ull_your_key_here",
)
resp = client.chat.completions.create(
model="openai/gpt-5-nano",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)GPT 5 Nano API — FAQ
How much does the GPT 5 Nano API cost?
GPT 5 Nano costs from $0.0200 per million input tokens and $0.2000 per million output tokens through UberLLM, which routes to the cheapest healthy provider. There is no inference markup.
How do I call GPT 5 Nano via API?
Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "openai/gpt-5-nano". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is GPT 5 Nano OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including GPT 5 Nano — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.