Run: 2026-04-24-01KQ0G1AW0DXVC6E6T19V14PTM

Run Details

Duration:
3.9s
Cost:
$0.007325
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
95.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the cobblestone streets. Detective Hollis lit his cigarette. The mansion loomed above him. Yellow tape fluttered in wind. A woman screamed somewhere inside. Hollis climbed the marble steps. Blood pooled near the doorway. The butler stood there trembling. His hands were stained crimson. Hollis studied him in silence. "She's upstairs," the butler whispered. "Third door on the left." Hollis nodded and went inside. The grandfather clock struck midnight. Something creaked on the staircase. He drew his service revolver. Shadows danced across pale walls. A portrait watched his ascent. Old money haunted these halls. Someone had died tonight here. Hollis intended to know why.
created_at"2026-04-24T19:38:59.844Z" 4/24/2026, 7:38:59 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1253
moderation_latency(null)
generation_time3801
tokens_prompt46
tokens_completion212
native_tokens_prompt65
native_tokens_completion280
native_tokens_completion_images(null)
native_tokens_reasoning39
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"end_turn"
usage0.007325
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"a138230f-8118-4685-a603-7ab8ec8c4730"
is_byokfalse
latency709
model_permaslug"anthropic/claude-4.7-opus-20260416"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777059539-vNBksWQKAtJHDlyWIcdP"
session_id(null)
api_type"completions"
id"gen-1777059539-dLpi7bMShwqdSkzgB1uG"
upstream_id"a138230f-8118-4685-a603-7ab8ec8c4730"
total_cost0.007325
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
95.00% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
05
15
25
35
45
55
65
75
85
95
105
1110
125
135
145
155
165
175
185
195