Run: 2026-07-25-01KYCRJVJRTWZ7NNWCCS50273S

Run Details

Duration:
15.4s
Cost:
$0.027450
Provider:
Amazon Bedrock

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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain started at midnight. Inspector Hale hated wet shoes. The body lay face down. Blood pooled beneath the roses. Someone had arranged them carefully. Twelve stems, each thorn removed. Hale crouched in the mud. The dead man wore silk. She recognized him immediately: Ashgrove. His watch had stopped working. Eleven forty-seven, the hands insisted. Rain drummed against her umbrella. A constable approached, notebook trembling. Nobody heard anything, he said. Hale did not believe him. Somebody always hears the screaming. The house watched them silently. Nine windows, every curtain drawn. Except one upstairs, left open. Hale wrote that down twice. Then she went inside alone.
created_at"2026-07-25T13:49:08.576Z" 7/25/2026, 1:49:08 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4402
moderation_latency(null)
generation_time15302
tokens_prompt46
tokens_completion305
native_tokens_prompt60
native_tokens_completion1086
native_tokens_completion_images(null)
native_tokens_reasoning134
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"
service_tier"default"
usage0.02745
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNt75v3DY7XTyhDtNkfn"
is_byokfalse
latency1883
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784987348-u2SHtyKJGkazUMyotxbT"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987348-HeXKayK0FzRw5qldmZ8G"
upstream_id"msg_011CdNt75v3DY7XTyhDtNkfn"
total_cost0.02745
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences21
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205