Run: 2026-09-10-01M25DG293BPTCWZNN850WFR3N

Run Details

Duration:
10.4s
Cost:
$0.001378
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
92.31% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the mansion windows as Inspector Vale stepped inside. The butler met him with trembling hands and pallid face. A woman's scream had shattered the quiet dinner party upstairs. Lord Ashcroft lay dead in his locked study, blood pooling. No weapon was found, and no footprints marked the rug. Inspector Vale studied the crimson stain near the fireplace grate. The window was closed, yet a cold wind touched him. He noticed a broken teacup beside the victim's outstretched hand. Its contents had dried into a dark, suspicious, bitter residue. A single locked door stood between the corpse and answers. Then the lights flickered, and the butler began to sob. Inspector Vale whispered, "Who among you loved Lord Ashcroft least?" Nobody answered, but every guest avoided the widow's steady gaze. Outside, thunder rolled like a carriage over the gravel drive.
created_at"2026-09-10T10:23:29.063Z" 9/10/2026, 10:23:29 AM
model"deepseek/deepseek-v4.1-flash-20260910"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1372
moderation_latency(null)
generation_time10413
tokens_prompt46
tokens_completion2304
native_tokens_prompt65
native_tokens_completion2280
native_tokens_completion_images(null)
native_tokens_reasoning2103
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)
usage0.00137775
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1789035809-cUYvPx0zalzeLUbLPfUT"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1789035809-R8WrZ9hpQ2GSNae8mC2E"
upstream_id"ec94a927-dee4-4e6c-a50d-b9fc70bb4c3f"
provider_responses
0
endpoint_id"fd104bc8-535a-4d31-a847-a8e402e86a02"
id"ec94a927-dee4-4e6c-a50d-b9fc70bb4c3f"
is_byokfalse
latency342
model_permaslug"deepseek/deepseek-v4.1-flash-20260910"
provider_name"DeepSeek"
status200
total_cost0.00137775
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
92.31% Matches word count n/a
neededCleanfalse
sentences13
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1120
1210