DeepSeek · Open weights

DeepSeek V4.1 Flash Uncensored

Added Oct 1, 2026Open weights

A lower-refusal finetune of DeepSeek V4.1 Flash with text input, optional reasoning, and tool calling. Supports a context window of up to 1M tokens.

Reasoning
Tools

Input: Text
Output: Text
Reasoning effort: none · low · medium · high
Discovery tier: Open weights

Pricing

USD per 1M tokens

Input: $0.33
Output: $1.32
Cache read: $0.0083

Reference prices as published by the model provider. API example

Specifications

Context window: 1M
Max output: 65.5K
Average output (7 days): 643 tokens; Longer than 58% of 468 models

Side by side

DeepSeek V4.1 Flash Uncensored compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

Limits
	DeepSeek V4.1 Flash UncensoredDeepSeekThis model	DeepSeek V4.1 Flash Uncensored ThinkingDeepSeekRemove
Provider	DeepSeek	DeepSeek
Discovery tier	Open weights	Open weights
Added	Oct 1, 2026	Oct 1, 2026
Context window	1.05M	1.05M
Max output	65.54K	65.54K
Average output	643 tokens	797 tokens
Pricing, USD per 1M tokens
Input	$0.33	$0.33
Output	$1.32	$1.32
Cache read	$0.0083	$0.0083
Performance
Throughput	294.5 tok/s	442.5 tok/sBest
Time to first token	4.8 sBest	5.8 s
Request success (24h)	84.8%	93.1%Best
Capabilities
Reasoning	Yes	Yes
Tools	Yes	Yes
Reasoning effort	none, low, medium, high	none, low, medium, high

Public evaluations

Benchmarks

There are no public benchmark results for these models yet.

Live routing data

Performance and reliability

Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.

Throughput: 294.5 tok/s; Faster than 94% of 254 models
Time to first token: 4.8 s; Quicker than 37% of 254 models
Prompt cache hits: 94.4%; About $0.0262 per 1M input tokens with caching
Request success (24h): 84.9%; Unstable

Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.

Hourly request success · last 72 hoursLowest hour 11.2%

Healthy (98% or more)
Degraded (90–98%)
Down (under 90%)
No requests

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart

curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4.1-flash-uncensored",
    "reasoning_effort": "medium",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'

import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="deepseek/deepseek-v4.1-flash-uncensored",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

DeepSeek

Other DeepSeek models, starting with the same family.