Run: 2026-10-13-01M4TADZQR22FR30Y777B6QENK

Run Details

Duration:
2m 6s
Cost:
$0.016614
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain stitched the black harbor while the ferry sighed ashore. Detective Mara Voss found velvet ribbon tied around his wrist. The captain swore nobody boarded after the midnight bells began. Inside cabin six, champagne sweated beside an untouched breakfast tray. A passport burned slowly, curling names into thin blackened lace. Mara photographed ashes before wind stole them toward open water. Then every light failed, and someone applauded from the dark. She smiled because murder always introduces itself with perfect manners.
created_at"2026-10-13T09:46:55.428Z" 10/13/2026, 9:46:55 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency433
moderation_latency(null)
generation_time32339
tokens_prompt46
tokens_completion1119
native_tokens_prompt123
native_tokens_completion1083
native_tokens_completion_images(null)
native_tokens_reasoning972
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)
usage0.016614
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791884815-7wBZANF6f4LcFJc6XJwc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791884815-0m3aUZdElkbAzHyxyzEG"
upstream_id"chatcmpl-815cc0effcbe4ed9a5a880fc9fcb7e8b"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-815cc0effcbe4ed9a5a880fc9fcb7e8b"
is_byokfalse
latency433
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.016614
cache_discount(null)
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
sentences8
wordCounts
010
110
210
310
410
510
610
710