Runway Gen-4.5 API
surplus/runway-gen4-5
Call Runway Gen-4.5 through UberLLM’s OpenAI-compatible API — from $0.0000/M input and $0.0000/M output, routed automatically to the cheapest healthy provider. Runway · 8,192 token context. No inference markup.
Runway Gen-4.5 pricing & providers
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| Surplus Intelligencebest | $0.0000 | $0.0000 |
How to use Runway Gen-4.5 with the OpenAI SDK
Already using OpenAI or OpenRouter? Change one line — the base URL — and call Runway Gen-4.5 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="surplus/runway-gen4-5",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Runway Gen-4.5 API — FAQ
How much does the Runway Gen-4.5 API cost?
Runway Gen-4.5 costs from $0.0000 per million input tokens and $0.0000 per million output tokens through UberLLM, which routes to the cheapest healthy provider. There is no inference markup.
How do I call Runway Gen-4.5 via API?
Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "surplus/runway-gen4-5". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is Runway Gen-4.5 OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including Runway Gen-4.5 — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.