Run: 2026-10-13-01M4TB1KMBNJBDR6FKHHWD7482

Run Details

Duration:
30.4s
Cost:
$0.026335
Provider:
Fireworks

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 hammered the glass as Detective Mara Voss entered the sealed library and found Sir Julian Hale dead beside firelight. His left hand clutched a black ribbon while his right reached toward a chessboard missing one ivory queen and pawns. Every clock in the house had stopped at eleven though thunder rolled beyond the cliffs and servants swore nobody passed. Mara noted dust on the decanter lipstick on the cipher and ash arranged like arrows pointing beneath a winter portrait. The butler claimed the windows were latched from inside yet salt rimmed the sill and wet footprints faced the wall. Then the lights failed and somewhere above them a key turned softly as if the house itself chose a witness.
created_at"2026-10-13T09:56:04.887Z" 10/13/2026, 9:56:04 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency597
moderation_latency(null)
generation_time30371
tokens_prompt46
tokens_completion1779
native_tokens_prompt123
native_tokens_completion1753
native_tokens_completion_images(null)
native_tokens_reasoning1601
native_tokens_cached122
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)
usage0.0263346
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791885364-HtA4abzLBQXErs1XWYnU"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791885364-NurG6Hs8Ngwql0lkk7cb"
upstream_id"chatcmpl-f76df35be3154b38bd68ce95cc399589"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-f76df35be3154b38bd68ce95cc399589"
is_byokfalse
latency597
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.0263346
cache_discount0.0003294
upstream_inference_cost0
provider_name"Fireworks"
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