Run: 2026-07-25-01KYCRMG3N68CXC8QHNNQ9NZ3R

Run Details

Duration:
13.9s
Cost:
$0.030125
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
95.83% 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 greenhouse glass. Inspector Vale hated wet mornings. The body lay among orchids. Her name was Margaret Ashby. Someone had arranged her hands. Palms up, fingers gently curled. A white bloom between them. Vale crouched beside the corpse. No blood stained the tiles. No bruises marked her throat. Only that flower, deliberately placed. Sergeant Pike coughed behind him. The gardener found her here. Doors were locked from inside. Vale studied the fogged windows. One pane showed smeared handprints. They faced the wrong way. Someone pressed out, not in. He stood, brushing wet knees. Wake the family, he said. Nobody sleeps through breaking glass. Pike hesitated at the door. The glass isn't broken, sir. Vale smiled without any warmth. Exactly, Vale said, walking out.
created_at"2026-07-25T13:50:02.368Z" 7/25/2026, 1:50:02 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3857
moderation_latency(null)
generation_time13745
tokens_prompt46
tokens_completion313
native_tokens_prompt60
native_tokens_completion1193
native_tokens_completion_images(null)
native_tokens_reasoning117
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"
usage0.030125
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNtB2znGU65Xs1btujWJ"
is_byokfalse
latency1289
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-1784987402-YzIgARIf5KZKHTNKLbar"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987402-tqA1coUfuleSpucHkSDE"
upstream_id"msg_011CdNtB2znGU65Xs1btujWJ"
total_cost0.030125
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
95.83% Matches word count n/a
neededCleanfalse
sentences24
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
2210
235