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GPT-4o API

openai/gpt-4o

Call GPT-4o through UberLLM’s OpenAI-compatible API — from $0.6300/M input and $2.50/M output, routed automatically to the cheapest healthy provider. OpenAI · 128,000 token context. No inference markup.

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GPT-4o pricing & providers

ProviderInput / 1MOutput / 1M
Surplus Intelligencebest$0.6300$2.50
OpenRouter$2.50$10.00

How to use GPT-4o with the OpenAI SDK

Already using OpenAI or OpenRouter? Change one line — the base URL — and call GPT-4o with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.

python
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-4o",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

GPT-4o API — FAQ

How much does the GPT-4o API cost?

GPT-4o costs from $0.6300 per million input tokens and $2.50 per million output tokens through UberLLM, which routes to the cheapest healthy provider. There is no inference markup.

How do I call GPT-4o 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-4o". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.

Is GPT-4o OpenAI-compatible on UberLLM?

Yes. Every model on UberLLM — including GPT-4o — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.

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