Run: 2026-10-13-01M4TAPR6RRSQX9V9SN699TCYB

Run Details

Duration:
40.4s
Cost:
$0.024805
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 harbor as Mara Venn found the curator dead beside the locked gallery with one glove missing tonight. The alarm never sounded and every camera showed only fog rolling through blue corridors toward the empty emerald display room. Detective Ilan Cross arrived before dawn and noticed salt on the marble though windows faced gardens not the black sea. Inside the clenched fist lay a ticket for a ferry that had sunk years ago with everyone aboard still smiling. Mara touched nothing because the name on that ticket belonged to her brother who vanished before the first storm broke.
created_at"2026-10-13T09:50:22.357Z" 10/13/2026, 9:50:22 AM
model"fireworks/ember-1-20260923"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency749
moderation_latency(null)
generation_time27145
tokens_prompt46
tokens_completion1740
native_tokens_prompt123
native_tokens_completion1651
native_tokens_completion_images(null)
native_tokens_reasoning1528
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)
usage0.0248046
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791885022-dnKqxecSvuGKKlVHeqM3"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791885022-LJwkJqoDt7rc5YyeB1Hj"
upstream_id"chatcmpl-cfef2bca7bdf42958ac65280af3bb8d7"
provider_responses
0
endpoint_id"b89a2f05-4051-4446-a9b0-7bc8ae7b7c90"
id"chatcmpl-cfef2bca7bdf42958ac65280af3bb8d7"
is_byokfalse
latency749
model_permaslug"fireworks/ember-1-20260923"
provider_name"Fireworks"
status200
total_cost0.0248046
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