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Cheap MiMo V2.5 Pro API
MiMo V2.5 Pro is Xiaomi's MiMo model listed at $0.44 / $0.87 per 1M input/output tokens. Through Somnus every top-up is credited at 2× to 2.5×, so you effectively pay $0.22 / $0.44 or less, on the same OpenAI-compatible key as 50+ other models.
What a top-up buys on MiMo V2.5 Pro
| You pay | Credit | ≈ 1M output tokens of MiMo V2.5 Pro |
|---|---|---|
| $20 (2×) | $40 | 46 |
| $50 (2.2×) | $110 | 126 |
| $100 (2.35×) | $235 | 270 |
| $200 (2.5×) | $500 | 575 |
Output-token count only; input tokens are cheaper. First top-up is at least 2.5×.
When to pick MiMo V2.5 Pro
MiMo V2.5 Pro costs $0.0011 per 1,500-in/500-out request at list price, $0.0005 effective. It is one of the lowest-priced models available, ideal for high-volume work.
MiMo V2.5 Pro vs similarly priced models
| Model | Maker | List (in / out) | Effective | Same request, effective |
|---|---|---|---|---|
| DeepSeek V4 Flash | DeepSeek | $0.22 / $0.66 | $0.11 / $0.33 | $0.0003 |
| DeepSeek V4 Pro | DeepSeek | $0.66 / $1.98 | $0.33 / $0.99 | $0.0010 |
| Gemini 3.8 Flash | $0.75 / $3.75 | $0.38 / $1.88 | $0.0015 | |
| Claude Haiku 4.5 | Anthropic | $1 / $5 | $0.5 / $2.5 | $0.0020 |
Nearest models to MiMo V2.5 Pro by blended price (3 input : 1 output). All run on one Somnus key.
Getting the most out of MiMo V2.5 Pro for less
- Input is 2.0× cheaper than output on MiMo V2.5 Pro, so long context with short answers is the cheapest pattern.
- A $200 top-up gives $500 credit — about 913M blended MiMo V2.5 Pro tokens.
- Mix models: send easy steps to DeepSeek V4 Flash and keep MiMo V2.5 Pro for the steps that need it.
Use MiMo V2.5 Pro
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.SOMNUS_API_KEY,
baseURL: "https://gateway-production-c837.up.railway.app/v1",
});
const resp = await client.chat.completions.create({
model: "claude-sonnet-5",
messages: [
{"role": "user", "content": "Summarise this in one line"}
],
});
console.log(resp.choices[0].message.content);Copy the exact model id from your dashboard.
Questions
Is MiMo V2.5 Pro really cheaper on Somnus?
Usage is billed at Xiaomi's list price, but each dollar you pay is credited as $2–$2.50, so the effective price is half or less.
Do I need a subscription?
No. Top up any amount from $5, or start with the free $5 credit.
Is Somnus affiliated with Xiaomi?
No. Somnus is an independent gateway.
Try MiMo V2.5 Pro with free credit
$5 free on sign-up, then 2× or more on every top-up.
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