Claude Sonnet 5.5 API
anthropic/claude-sonnet-5.5
Call Claude Sonnet 5.5 through UberLLM’s OpenAI-compatible API — from $0.2285/M input and $1.14/M output, routed automatically to the cheapest healthy seller. Anthropic · 1,000,000 token context. Fee included.
Claude Sonnet 5.5 pricing
- Input
- $0.2285
- Output
- $1.1424
- Cached input
- $0.0114
- Input
- $2.20
- Output
- $11.00
- Cached input
- $0.11
| Provider | Input | Output | Cached input |
|---|---|---|---|
| OpenRouter | $2.00 | $10.00 | $0.10 |
| Venice AI | $2.00 | $10.00 | $0.10 |
UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.
How to use Claude Sonnet 5.5 with the OpenAI SDK
Already using the OpenAI SDK? Change one line — the base URL — and call Claude Sonnet 5.5 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="anthropic/claude-sonnet-5.5",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Claude Sonnet 5.5 API — FAQ
How much does the Claude Sonnet 5.5 API cost?
Claude Sonnet 5.5 is listed from $0.2285 per million input tokens and $1.14 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 Sonnet 5.5 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-sonnet-5.5". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is Claude Sonnet 5.5 OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including Claude Sonnet 5.5 — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.