Run: 2026-09-03-01M1KB0EV4623MTPVCV5F1HNXW

Run Details

Duration:
3m 51s
Cost:
$0.001211
Provider:
CoreWeave

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
The old attic clock struck twelve as rain lashed the gables, and below the dark house lay silent and still. A body lay sprawled upon the study floor, its sightless eyes fixed on the ceiling above, unmoving and utterly alone. The inspector knelt beside the corpse, noting the faint scent of almonds on the still air with a gloved finger. A silver locket lay clutched in the victim’s hand, its chain snapped as if torn free in a desperate struggle. Footsteps echoed from the hall outside, heavy and slow, then the study door suddenly creaked open with a low groan. Inspector Marlowe turned, his eyes narrowing as he saw who stood trembling in the doorway at the threshold there now.
created_at"2026-09-03T09:53:40.722Z" 9/3/2026, 9:53:40 AM
model"deepseek/deepseek-v4-flash-20260731"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1925
moderation_latency(null)
generation_time231089
tokens_prompt46
tokens_completion4047
native_tokens_prompt118
native_tokens_completion4270
native_tokens_completion_images(null)
native_tokens_reasoning3876
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)
usage0.00121094
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788429220-gQuOgm6sm1lkNDnJSWl5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788429220-roNT7uNQ2N3V1F7jCljk"
upstream_id"chatcmpl-671d127b-0bca-47c7-9221-744f7268d03b"
provider_responses
0
endpoint_id"47a93b18-a9c6-485b-9a47-2afb6ca790dc"
is_byokfalse
latency44
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"BaseTen"
status429
1
endpoint_id"cbfecbd7-9a18-45ea-bcd1-fabaa868db5c"
id"chatcmpl-671d127b-0bca-47c7-9221-744f7268d03b"
is_byokfalse
latency682
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"CoreWeave"
status200
total_cost0.00121094
cache_discount(null)
upstream_inference_cost0
provider_name"CoreWeave"
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
sentences6
wordCounts
020
120
220
320
420
520