Run: 2026-07-25-01KYCPYF6QSD754RWH4TSXR77B

Run Details

Duration:
8.6s
Cost:
$0.008875
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
Rain hammered the slate roof. Detective Mara Voss knocked twice. Nobody answered the heavy door. She pushed it open slowly. The hinges shrieked like gulls. Inside, candles burned down low. Wax pooled across the floorboards. A grandfather clock had stopped. Its hands pointed to three. Mara counted seven wine glasses. Only six chairs sat empty. The seventh lay overturned nearby. Red spread beneath the tablecloth. She lifted the linen edge. Harold Finch stared back up. His eyes held no surprise. The knife was still warm. Mara did not touch it. Instead she studied the room. Six coats hung by entry. Six pairs of wet shoes. So the guests remained here. Someone in this house killed. Upstairs, a floorboard groaned once. Mara reached for her radio. The battery had gone dead. Thunder answered her soft curse. She climbed the stairs anyway.
created_at"2026-07-25T13:20:31.964Z" 7/25/2026, 1:20:31 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2117
moderation_latency(null)
generation_time8499
tokens_prompt46
tokens_completion231
native_tokens_prompt60
native_tokens_completion343
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.008875
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNqvXcpkDs8kcauLM4U5"
is_byokfalse
latency2117
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-1784985631-ZDARUJRUprISXfLBMeAU"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784985631-N0BhF9U8NJQnxBvI4ubu"
upstream_id"msg_011CdNqvXcpkDs8kcauLM4U5"
total_cost0.008875
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
sentences28
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
225
235
245
255
265
275