Run: 2026-10-13-01M4TAQ8Z1BQZVAC2ENMGDCJTR

Run Details

Duration:
34.4s
Cost:
$0.031450
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 carved silver lines down the chapel windows while Detective Mara Voss counted the candles and waited for one confession. The victim lay beneath the altar with gold thread through his lips and no weapon anywhere in sight that night. A choirboy found him at dawn because the organ breathed though every rope hung still and every door remained locked. Mara noted black wax on his cuff and ash beneath his nails though the hearth stood cold across the nave. The rector swore he prayed alone until bells announced morning yet his sleeves smelled strongly of smoke and bitter almonds. Outside the churchyard gate a lantern guttered over footprints that stopped abruptly where the stones were dry and too clean. Mara pocketed one black candle end and promised the dead man silence until she learned who taught him fear first.
created_at"2026-10-13T09:50:26.285Z" 10/13/2026, 9:50:26 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1075
moderation_latency(null)
generation_time34361
tokens_prompt46
tokens_completion2140
native_tokens_prompt123
native_tokens_completion2094
native_tokens_completion_images(null)
native_tokens_reasoning1926
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)
usage0.0314496
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791885026-OZhe4iFF2MCKYiueRf2D"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791885026-4WuAWWfoQomnJdTdVQ4v"
upstream_id"chatcmpl-e539a237dbd34a958f933ada75364b39"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-e539a237dbd34a958f933ada75364b39"
is_byokfalse
latency1075
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.0314496
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
sentences7
wordCounts
020
120
220
320
420
520
620