Run: 2026-02-16-01KHK13GCZNXRQM7EPCPA37XDM

Run Details

Model:
Qwen 3.5 Plus (2026-02-15)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
5.5s
Cost:
$0.000264
Provider:
Alibaba

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain fell hard upon the old roof while thunder shook the very walls inside the dark house. A single candle flickered low within the hall as shadows danced around the silent figure on the floor. Detective Miller stepped close to see the wound that marked the neck of the wealthy man lying there. No signs of struggle appeared within the room except for one broken glass near the heavy oak door. The clock upon the wall struck midnight just as a faint scent of bitter almonds filled up the air.
created_at"2026-02-16T10:49:31.382872+00:00" 2/16/2026, 10:49:31 AM
model"qwen/qwen3.5-plus-20260216"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency800
moderation_latency(null)
generation_time5469
tokens_prompt46
tokens_completion127
native_tokens_prompt49
native_tokens_completion102
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.0002644
router(null)
provider_responses
0
id"chatcmpl-a17201a3-3fd3-9b4d-8e3c-709e1dd29d0a"
status200
is_byokfalse
latency800
endpoint_id"71e0f6c3-7815-4734-92d3-8a04f3b0ca91"
provider_name"Alibaba"
model_permaslug"qwen/qwen3.5-plus-20260216"
api_type"completions"
id"gen-1771238965-dEoKg8dFZbPgxwKyDy4k"
upstream_id"chatcmpl-a17201a3-3fd3-9b4d-8e3c-709e1dd29d0a"
total_cost0.0002644
cache_discount(null)
upstream_inference_cost0
provider_name"Alibaba"

Evaluation details

Result Evaluator Details Meta Data
22.9574% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
018
118
218
318
419