Run: 2026-09-03-01M1KBN4M8JESD968XW46KZT3K

Run Details

Duration:
20.6s
Cost:
$0.005131
Provider:
StreamLake

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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain fell hard tonight. Detective Mara Cole arrived alone. The old mansion loomed ahead. Yellow tape marked the door. A uniformed officer nodded grimly. She stepped over the threshold. Inside, tall candles flickered weakly. A body lay on stone. Blood pooled beneath his head. The victim wore a tuxedo. No sign of forced entry. Mara crouched beside the corpse. His right hand clutched paper. She unfolded the damp note. It read, "She knows everything." Mara's heart began to pound. Then the lights went out.
created_at"2026-09-03T10:04:58.39Z" 9/3/2026, 10:04:58 AM
model"deepseek/deepseek-v4-pro-20260813"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1556
moderation_latency(null)
generation_time20551
tokens_prompt46
tokens_completion1520
native_tokens_prompt118
native_tokens_completion1494
native_tokens_completion_images(null)
native_tokens_reasoning1376
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)
usage0.00513084
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788429898-P9d4DMIr5HRm4lBUKlaS"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788429898-13tJCUw2AwSOLnpnYKQ2"
upstream_id"req-cclr9v-1788429898586942080"
provider_responses
0
endpoint_id"072c1c23-c069-4242-bb6d-1b30ca5f4eb8"
id"req-cclr9v-1788429898586942080"
is_byokfalse
latency1556
model_permaslug"deepseek/deepseek-v4-pro-20260813"
provider_name"StreamLake"
status200
total_cost0.00513084
cache_discount(null)
upstream_inference_cost0
provider_name"StreamLake"
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
sentences17
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165