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OpenKey

MiMo-V2.5-Pro

XiaomiReleased Apr 22, 2026

MiMo-V2.5-Pro is Xiaomi’s flagship model, delivering strong performance in general agentic capabilities, complex software engineering, and long-horizon tasks, with top rankings on benchmarks such as ClawEval, GDPVal, and SWE-bench Pro....

Try in playground
Context window
1.0M tokens
Max output
131K tokens
Input
text
Output
text
Tokenizer
Other
Released
Apr 22, 2026
Reasoning
optional

Pricing

Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.

Per 1M tokensProvider+ 3% feeYou pay
Input$0.435$0.013$0.448
Output$0.870$0.026$0.896
Cache read$0.0036$0.0001$0.0037

Benchmarks

Artificial Analysis

Intelligence index
42.2
Coding index
60.2
Agentic index
29.1

Design Arena

CategoryEloWin rateRank
3Dmodels132259.3%#10
ASCII artmodels121151.5%#20
Codemodels131858.1%#9
Data vizmodels129658.6%#10
Game devmodels133761%#7
SVGmodels124055.8%#15
UI componentsmodels129555.5%#16
Websitesmodels130856.4%#10

Head-to-head preference voting. How we filter and rank

Supported parameters

  • frequency_penalty
  • include_reasoning
  • logit_bias
  • logprobs
  • max_tokens
  • min_p
  • presence_penalty
  • reasoning
  • repetition_penalty
  • response_format
  • seed
  • stop
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_k
  • top_logprobs
  • top_p

Call it

OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model xiaomi/mimo-v2.5-pro.

Code sample language
curl https://api.openkey.ai/v1/chat/completions \
  -H "Authorization: Bearer $OPENKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "xiaomi/mimo-v2.5-pro",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.openkey.ai/v1",
    api_key=os.environ["OPENKEY_API_KEY"],
)

completion = client.chat.completions.create(
    model="xiaomi/mimo-v2.5-pro",
    messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.openkey.ai/v1",
  apiKey: process.env.OPENKEY_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "xiaomi/mimo-v2.5-pro",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Questions

How much does MiMo-V2.5-Pro cost via API?
Through OpenKey, MiMo-V2.5-Pro costs $0.448 per 1M input tokens and $0.896 per 1M output tokens. That is the provider price ($0.435 / $0.870) plus a flat 3% fee — nothing else.
What is MiMo-V2.5-Pro's context window?
MiMo-V2.5-Pro accepts up to 1.0M tokens of context and returns up to 131K tokens per request.
Is MiMo-V2.5-Pro OpenAI-compatible?
Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "xiaomi/mimo-v2.5-pro" using any OpenAI SDK — only the base URL and API key change.
What inputs does MiMo-V2.5-Pro support?
MiMo-V2.5-Pro accepts text input and produces text output.

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