Run: 2026-09-02-01M1HA6Z0FPNYYX27T6CX0N1MY

Run Details

Model:
Qwen 3.8 Max (Reasoning, XHigh)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
22.2s
Cost:
$0.006466
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 tapped the window while the detective found Lord Hale dead beside the fireplace with a silver knife near him. His eyes stared at the portrait of a missing woman whose smile seemed far too knowing for a dead victim. A note lay beneath his hand, warning everyone that the next death would come before dawn unless the truth spoke.
created_at"2026-09-02T15:01:16.442Z" 9/2/2026, 3:01:16 PM
model"qwen/qwen3.8-max-20260803"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1157
moderation_latency(null)
generation_time22151
tokens_prompt46
tokens_completion931
native_tokens_prompt98
native_tokens_completion1045
native_tokens_completion_images(null)
native_tokens_reasoning976
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)
usage0.006466
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788361276-mqu6sM80wz7zCuFqUNfJ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788361276-0briGLzOTVJ9aFrtykGK"
upstream_id"chatcmpl-f444bb6a-1c3f-91b7-b07a-fd81f7fc6b8b"
provider_responses
0
endpoint_id"6332e9fd-e0c4-4cae-8c17-d25bc774864a"
id"chatcmpl-f444bb6a-1c3f-91b7-b07a-fd81f7fc6b8b"
is_byokfalse
latency1157
model_permaslug"qwen/qwen3.8-max-20260803"
provider_name"Alibaba"
status200
total_cost0.006466
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
sentences3
wordCounts
020
120
220