Run: 2026-09-03-01M1KA4K06KXNPTDBDXDBMES1J

Run Details

Model:
DeepSeek V4 Flash 0731 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
51.7s
Cost:
$0.000915
Provider:
Relace

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 very large body lay sprawled upon the Persian rug with sightless eyes staring at the cold ornate ceiling above. A shiny silver letter opener rested beside the outstretched hand and its blade was stained with dark crimson sticky blood. The old tall grandfather clock in the dark corner had stopped ticking at eleven forty-seven very precisely that cold morning.
created_at"2026-09-03T09:38:27.478Z" 9/3/2026, 9:38:27 AM
model"deepseek/deepseek-v4-flash-20260731"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1009
moderation_latency(null)
generation_time51601
tokens_prompt46
tokens_completion4529
native_tokens_prompt118
native_tokens_completion5042
native_tokens_completion_images(null)
native_tokens_reasoning4438
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)
usage0.00091523
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788428307-54ExsnxyWOAzr0iolJfk"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788428307-dpDqecQWfL53hSVseQuW"
upstream_id"0dd0d4fba9c8490fb6c3ea999ebc6710"
provider_responses
0
endpoint_id"57c1bfab-049c-4d6a-ab34-ac1007a6043b"
id"0dd0d4fba9c8490fb6c3ea999ebc6710"
is_byokfalse
latency1009
model_permaslug"deepseek/deepseek-v4-flash-20260731"
provider_name"Relace"
status200
total_cost0.00091523
cache_discount(null)
upstream_inference_cost0
provider_name"Relace"
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