Run: 2026-10-13-01M4TANRD8N9NQSDC0NGJ3164P

Run Details

Duration:
29.2s
Cost:
$0.024445
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 polished the harbor stones while Inspector Mara Voss counted sirens and found the seventh silence inside the boathouse tonight. The victim lay beneath canvas with clean hands clasped tight and one silver cufflink missing beside a notebook still warm. A gull screamed once then vanished as constables sealed the pier and photographers argued over shadows near the tide line. Mara noticed salt on the boots though the forecast promised clear roads and every witness swore nobody walked ashore tonight. Then the harbor bell rang thirteen times and a hidden pocket answered with a phone glowing blue beneath wet wool.
created_at"2026-10-13T09:49:36.563Z" 10/13/2026, 9:49:36 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency534
moderation_latency(null)
generation_time29106
tokens_prompt46
tokens_completion1688
native_tokens_prompt123
native_tokens_completion1627
native_tokens_completion_images(null)
native_tokens_reasoning1498
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)
usage0.0244446
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791884976-MmbTSvcMxCvgaMHEPpwW"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791884976-lJ8BV6MceQRFUQSczPT0"
upstream_id"chatcmpl-2565116ac312415fb50879567c9b8da0"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-2565116ac312415fb50879567c9b8da0"
is_byokfalse
latency534
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.0244446
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
sentences5
wordCounts
020
120
220
320
420