DeepSeek Text

Model ID: nguyenvietanh20143/deepseek-v4.1-flash

Family

DeepSeek

Context

262,144

Per request

Free

Requests

2.3K

Success

97.8%

Tokens

141.25M

Uptime 97.81%

24h agoNow

Observed token response speed

Up to 500 recent requests with a measured response time

500 recent requests

Observed output speed39.5 tok/s

Response time P5014,101 ms

Response time P9543,892 ms

Samples500

Observed output speed: 28.2 tok/s · Output: 553 token · Response time: 28.5 s · 16 requests

Up to 500 recent requests with a measured response time10/11/2026 - 23:23:17

Response similarity to the reference model

The percentage reflects similarity between tested responses and reference data; it does not determine whether a model is genuine or fake.

Latest result: High matchReference data updated: 27/10/2026 - 04:24:38 · deepseek-v4.1-flash

Direct comparisons1

direct high-match checks1

Direct results for this model

Included in this model’s score

High matchReference model: deepseek-v4.1-flash 84.0%High match

Check with my API key

Pricing

Per request

Free

Price history

Price levels previously applied. The row tagged "current" is the live price.

Current Since 10/11/2026 - 14:04:54

Free

Supported endpoints

https://api.xah.io/v1/chat/completions

https://api.xah.io/v1/completions

https://api.xah.io/v1/messages

https://api.xah.io/v1/responses

https://api.xah.io/v1beta/models/nguyenvietanh20143/deepseek-v4.1-flash:generateContent

https://api.xah.io/api/chat

https://api.xah.io/api/generate

Method POST · application/json

Auth Bearer token (API key)

Rate limit 75 req/min

Tested load 🟢 High peak 52/s · sustained 20.6/s

Latency p95 2,344 ms

API kinds Text

Notes

có thể vài lúc sẽ lỗi

Quick CLI setup

Pick your CLI. Install it first (step 1), then run the config command (step 2) to write the config file for this model.

Operating system

Step 1 — Install the CLI first (if not installed)

Skip this if you already have the CLI installed.

Step 2 — Config command (run once)

Open Terminal (macOS/Linux) or PowerShell (Windows), paste the command, then enter your API key when prompted.

Uninstall — remove config & CLI

Run one command to restore your previous config (or remove the CKEY config) and see how to uninstall the CLI.

Endpoint: Stream

curl 'https://api.xah.io/v1/chat/completions' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "nguyenvietanh20143/deepseek-v4.1-flash",
    "messages": [
        {
            "role": "user",
            "content": "Hello, who are you?"
        }
    ]
}'

// Node.js / Browser
const res = await fetch('https://api.xah.io/v1/chat/completions', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "model": "nguyenvietanh20143/deepseek-v4.1-flash",
    "messages": [
        {
            "role": "user",
            "content": "Hello, who are you?"
        }
    ]
})
});
const data = await res.json();
console.log(data);

import json, requests

url = 'https://api.xah.io/v1/chat/completions'
headers = {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json',
}
payload = json.loads("{\n    \"model\": \"nguyenvietanh20143/deepseek-v4.1-flash\",\n    \"messages\": [\n        {\n            \"role\": \"user\",\n            \"content\": \"Hello, who are you?\"\n        }\n    ]\n}")

res = requests.post(url, headers=headers, json=payload, timeout=120)
print(res.status_code, res.json())

{
    "model": "nguyenvietanh20143/deepseek-v4.1-flash",
    "messages": [
        {
            "role": "user",
            "content": "Hello, who are you?"
        }
    ]
}

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