Run: 2026-10-13-01M4TB6J403780FQXXT3BZ9NPC

Run Details

Duration:
32.7s
Cost:
$0.031735
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 Inspector Mara Voss found the lighthouse keeper dead beside his burning lamp. The door stood open though the logbook insisted every bolt had been carefully drawn before midnight by the victim himself. A gull screamed above the stairs and somewhere below a clock refused to strike the hour it had truly owed. Mara touched the brass rail and felt oil on her glove although the storm had scrubbed the landing clean again. Then the fog horn answered from the water and every window along the village turned its pale face slowly upward. Within a fold of oilcloth Mara discovered a theater ticket torn across the printed date of tomorrow and black salt.
created_at"2026-10-13T09:58:47.177Z" 10/13/2026, 9:58:47 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency399
moderation_latency(null)
generation_time32635
tokens_prompt46
tokens_completion2172
native_tokens_prompt123
native_tokens_completion2113
native_tokens_completion_images(null)
native_tokens_reasoning1968
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)
usage0.0317346
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791885527-CFk66CzU7CkBIUzUEJH5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791885527-NJEp687worX0ExFESaiF"
upstream_id"chatcmpl-8f003ee42ece4434b1d94888441a2824"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-8f003ee42ece4434b1d94888441a2824"
is_byokfalse
latency399
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.0317346
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