Mercury 3 API

inception/mercury-3

Call Mercury 3 through UberLLM’s OpenAI-compatible API — from $0.0550/M input and $0.1925/M output, routed automatically to the cheapest healthy seller. Inception · 1,000,000 token context. Fee included.

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Mercury 3 pricing

Price now · per 1M tokens
Input
$0.055
Output
$0.1925
Cached input
$0.0055
% off list
50% off
53% of input served from cache
List price · per 1M tokens
Input
$0.11
Output
$0.385
Cached input
$0.011
Providers and their list prices, per 1M tokens
ProviderInputOutputCached input
OpenRouter$0.10$0.35$0.01
Venice AI$0.10$0.35$0.01

UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.

How to use Mercury 3 with the OpenAI SDK

Already using the OpenAI SDK? Change one line — the base URL — and call Mercury 3 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="inception/mercury-3",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

Mercury 3 API — FAQ

How much does the Mercury 3 API cost?

Mercury 3 is listed from $0.0550 per million input tokens and $0.1925 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 Mercury 3 via API?

Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "inception/mercury-3". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.

Is Mercury 3 OpenAI-compatible on UberLLM?

Yes. Every model on UberLLM — including Mercury 3 — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.

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