Run: 2026-10-13-01M4TANBX7B3ZZ4SCTXM21KBQH

Run Details

Duration:
28.6s
Cost:
$0.022300
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 silvered the cobblestones outside Bellamy House as Inspector Mara Voss arrived and found the gate standing wide open tonight. Inside the study smelled of cigar smoke spilled brandy and fear while the clock above the mantel refused to move. Lord Bellamy lay beside his desk with one pale hand reaching toward a drawer that someone had locked from outside. A broken window framed the garden yet no footprints marked the flowerbeds and no glass glittered upon the carpet nearby. Mara touched the dead gentleman and felt his pocket watch ticking backward beneath her thumb like a small private warning. Then every candle in the room bent toward the door though the windows were shut and the hall stood empty.
created_at"2026-10-13T09:49:23.761Z" 10/13/2026, 9:49:23 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2097
moderation_latency(null)
generation_time28618
tokens_prompt46
tokens_completion1517
native_tokens_prompt123
native_tokens_completion1484
native_tokens_completion_images(null)
native_tokens_reasoning1334
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)
usage0.0222996
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791884963-BocMkd2q31R71wQrfELi"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791884963-gVyKZr1tsBnh2fYgMelQ"
upstream_id"chatcmpl-a380f28b4641427688c27cc1b6489e18"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-a380f28b4641427688c27cc1b6489e18"
is_byokfalse
latency2097
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.0222996
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