Run: 2026-09-02-01M1HGE8V7TA690K45N0K9KN6S

Run Details

Model:
Qwen 3.8 Flash (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
30.2s
Cost:
$0.000976
Provider:
Alibaba

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

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
In the candlelit library, a judge lay dead beneath a clock that had stopped at midnight, surrounded by shattered glass. No key existed, only silence, suspicion, and the smell of poison curling around the murdered man in the dark library.
created_at"2026-09-02T16:50:07.343Z" 9/2/2026, 4:50:07 PM
model"qwen/qwen3.8-flash-20260826"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency759
moderation_latency(null)
generation_time30185
tokens_prompt46
tokens_completion1890
native_tokens_prompt98
native_tokens_completion2046
native_tokens_completion_images(null)
native_tokens_reasoning1994
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier(null)
usage0.00097632
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788367807-afqt02rjGwJeDwKLe3K4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788367807-GXUiMoEpOpz6Kd9LyXlU"
upstream_id"chatcmpl-cb962134-eb27-98df-8418-2caebc83467b"
provider_responses
0
endpoint_id"84b1e4a7-5aed-4464-818f-1994f0b4ee18"
id"chatcmpl-cb962134-eb27-98df-8418-2caebc83467b"
is_byokfalse
latency758
model_permaslug"qwen/qwen3.8-flash-20260826"
provider_name"Alibaba"
status200
total_cost0.00097632
cache_discount(null)
upstream_inference_cost0
provider_name"Alibaba"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences2
wordCounts
020
120