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Qwen · Open weights

Qwen3.5 27B Blossom V6.4 Derestricted

Added May 15, 2026Open weights

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Use in the app

Qwen3.5 27B Blossom V6.4 Derestricted is a community creative finetune for reasoning, multimodal chat, expressive writing, and roleplay.

  • Reasoning
  • Tools
  • Vision
Input
Text, Images
Output
Text
Reasoning effort
none · high
Discovery tier
Open weights

Pricing

USD per 1M tokens
Input
$0.31
Output
$0.31

Reference prices as published by the model provider. API example

Specifications

Context window
262.1K
Max output
—
Average output (7 days)
535 tokens
Longer than 51% of 468 models

Side by side

Qwen3.5 27B Blossom V6.4 Derestricted compared

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

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Qwen3.5 27B Blossom V6.4 DerestrictedQwenThis modelQwen 3.8 27B KimikoQwenRemove
ProviderQwenQwen
Discovery tierOpen weightsOpen weights
AddedMay 15, 2026Oct 5, 2026
Limits
Context window262.14K262.14K
Max output—32.77K
Average output535 tokens210 tokens
Pricing, USD per 1M tokens
Input$0.31$0.10Best
Output$0.31Best$0.60
Cache read—$0.05
Performance
Throughput23.7 tok/s—
Time to first token15.0 s—
Request success (24h)83.5%100.0%Best
Capabilities
ReasoningYesYes
ToolsYesYes
VisionYesYes
Reasoning effortnone, 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
23.7 tok/s
Faster than 16% of 254 models
Time to first token
15.0 s
Quicker than 3% of 254 models
Request success (24h)
83.5%
Unstable
Hourly request success · last 72 hoursLowest hour 0.0%
  • 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": "Qwen3.5-27B-Blossom-V6.4-Derestricted",
    "reasoning_effort": "none",
    "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="Qwen3.5-27B-Blossom-V6.4-Derestricted",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

Qwen

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