deepseek-v4.1-flash

Name: deepseek-ai/deepseek-v4.1-flash
Brand: DeepSeek
Price: 0.3 USD
Availability: InStock

DeepSeekAdded Sep 29, 2026New

Model iddeepseek-ai/deepseek-v4.1-flash

DeepSeek's multimodal mixture-of-experts model, 552B parameters with 8 to 16B active per token, built to cut the cost of agent workloads that read a lot of input. Takes images as well as text, with reasoning effort selectable per request.

Cost /1M tokens

$0.30input

$0.03cached

$1.20output

Context

1Mtokens

Live speed

226 tok/s · 0.61s to first token

Speed

Throughput users got on deepseek-v4.1-flash with Keln API in the last 24 hours.

Latency

Time to first token users got on deepseek-v4.1-flash with Keln API in the last 24 hours.

Capabilities

Input

Text and images

Tool calling

Yes

JSON output

Yes

Reasoning

Yes

Web search

With opt-in

Data retention

Zero

Use the API

Create an API key, save it to KELN_API_KEY, then call the endpoint below.

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.keln.ai/v1/",
    api_key=os.environ.get("KELN_API_KEY"),
)

resp = client.chat.completions.create(
    model="deepseek-ai/deepseek-v4.1-flash",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)