Run: 2026-09-02-01M1HBFQC56B3QNNARV5D7G6NG

Run Details

Model:
Qwen 3.8 Max (Reasoning, XHigh)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 2s
Cost:
$0.015946
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 lashed the study window when the detective discovered Lord Ashworth dead beneath the broken chandelier at midnight that night. Blood stained his white collar, yet no weapon waited in the silent room except a silver letter opener resting nearby. A note lay beside him, warning every guest that secrets would kill again before morning came to the old house. The detective closed the door, knowing only family could have entered this locked room and murdered the wicked proud lord.
created_at"2026-09-02T15:23:32.11Z" 9/2/2026, 3:23:32 PM
model"qwen/qwen3.8-max-20260803"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency936
moderation_latency(null)
generation_time61546
tokens_prompt46
tokens_completion2484
native_tokens_prompt98
native_tokens_completion2625
native_tokens_completion_images(null)
native_tokens_reasoning2529
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)
usage0.015946
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788362612-cKwn0gLF8Zfr4W2bgwQ0"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788362612-YXXUhiFLPTTFAThEvxi4"
upstream_id"chatcmpl-77e01369-ca6d-98fc-94e3-8f8747f21074"
provider_responses
0
endpoint_id"6332e9fd-e0c4-4cae-8c17-d25bc774864a"
id"chatcmpl-77e01369-ca6d-98fc-94e3-8f8747f21074"
is_byokfalse
latency936
model_permaslug"qwen/qwen3.8-max-20260803"
provider_name"Alibaba"
status200
total_cost0.015946
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