Claude Opus 4.6 Fast API
anthropic/claude-opus-4.6-fast
Call Claude Opus 4.6 Fast through UberLLM’s OpenAI-compatible API — from $29.70/M input and $148.50/M output, routed automatically to the cheapest healthy seller. Anthropic · 1,000,000 token context. Fee included.
Claude Opus 4.6 Fast pricing
- Input
- $29.70
- Output
- $148.50
- Cached input
- $2.97
| Provider | Input | Output | Cached input |
|---|---|---|---|
| Venice AI | $36.00 | $180.00 | $3.60 |
UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.
How to use Claude Opus 4.6 Fast with the OpenAI SDK
Already using the OpenAI SDK? Change one line — the base URL — and call Claude Opus 4.6 Fast 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="anthropic/claude-opus-4.6-fast",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Claude Opus 4.6 Fast API — FAQ
How much does the Claude Opus 4.6 Fast API cost?
Claude Opus 4.6 Fast is listed from $29.70 per million input tokens and $148.50 per million output tokens through UberLLM, which routes each request to the cheapest healthy seller on a live marketplace and bills the price shown, which includes UberLLM's 10% fee.
How do I call Claude Opus 4.6 Fast via API?
Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "anthropic/claude-opus-4.6-fast". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is Claude Opus 4.6 Fast OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including Claude Opus 4.6 Fast — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.