Run: 2026-10-13-01M4TAE7M4YJNV5PZXR4Q3VAQD

Run Details

Duration:
1m 29s
Cost:
$0.028374
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 stitched the harbor to the cliffs while Mara Venn found the lighthouse keeper dead beside his still warm tea. His silver whistle lay open in his palm though the door was locked from inside and the lamp burned blue. Mara noted salt on the windowsill and one clean footprint pointing toward stairs that ended against cold solid stone above. Below them the tide swallowed the jetty then carried back a white glove marked with the missing mayor's family name. Then every clock in town stopped together and someone upstairs began knocking three times against the locked door softly again.
created_at"2026-10-13T09:46:22.49Z" 10/13/2026, 9:46:22 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency541
moderation_latency(null)
generation_time36514
tokens_prompt46
tokens_completion1897
native_tokens_prompt123
native_tokens_completion1867
native_tokens_completion_images(null)
native_tokens_reasoning1745
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)
usage0.028374
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791884782-T5JB3AkPqqBv7KzU3A8q"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791884782-LxzOYnSr8BKDEl6A6DGL"
upstream_id"chatcmpl-0cdc42902fc44547899b5378d6df658a"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-0cdc42902fc44547899b5378d6df658a"
is_byokfalse
latency541
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.028374
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
sentences5
wordCounts
020
120
220
320
420