Run: 2026-09-02-01M1H9SKCZ98R3H56VQ4TCWRVG

Run Details

Model:
Qwen 3.8 Max (Reasoning, XHigh)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
44.9s
Cost:
$0.013846
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
Rain hammered the Manor while a scream tore through the hall, shaking every candle flame into frantic, trembling, wild shadows. Detective Mira Vale stepped inside, saw the body near the marble stairs, and felt the silence press against her skin. The victim wore a velvet jacket, his pale hand clutched a brass key, and his eyes stared upward in silence. A note lay beneath his collar, stained with blood, promising that another soul would vanish before morning light came again.
created_at"2026-09-02T14:53:58.577Z" 9/2/2026, 2:53:58 PM
model"qwen/qwen3.8-max-20260803"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency970
moderation_latency(null)
generation_time44860
tokens_prompt46
tokens_completion2010
native_tokens_prompt98
native_tokens_completion2275
native_tokens_completion_images(null)
native_tokens_reasoning2173
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)
usage0.013846
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788360838-VZRz7wvvgYBWfeJHHSn7"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788360838-7mSKXVP7amhZ2EkDbHB4"
upstream_id"chatcmpl-37ce1784-463b-9543-bd6d-94b51ac69f27"
provider_responses
0
endpoint_id"6332e9fd-e0c4-4cae-8c17-d25bc774864a"
id"chatcmpl-37ce1784-463b-9543-bd6d-94b51ac69f27"
is_byokfalse
latency970
model_permaslug"qwen/qwen3.8-max-20260803"
provider_name"Alibaba"
status200
total_cost0.013846
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
sentences4
wordCounts
020
120
220
320