Run: 2026-06-01-01KT1G3E5CJSB0RCYXR282PG7S

Run Details

Duration:
18.5s
Cost:
$0.007300
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 fell that night. Detective Morgan arrived too late. Blood pooled across marble floors. The mansion stood eerily silent. Lightning flashed through tall windows. A woman lay there motionless. Her eyes stared at nothing. Someone had wanted her dead. The front door hung open. Wet footprints led somewhere upstairs. Morgan pulled out his weapon. Every shadow concealed potential danger. Thunder rolled across the sky. He climbed the creaking staircase. The killer might still remain. Each step felt agonizingly slow. A floorboard groaned somewhere ahead. Morgan held his breath carefully. Then he heard soft weeping. Someone was definitely still here.
created_at"2026-06-01T11:46:28.657Z" 6/1/2026, 11:46:28 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2682
moderation_latency(null)
generation_time8479
tokens_prompt46
tokens_completion207
native_tokens_prompt60
native_tokens_completion280
native_tokens_completion_images(null)
native_tokens_reasoning43
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"
usage0.0073
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
is_byokfalse
latency10046
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status504
1
endpoint_id"c17fb1eb-dbda-4889-971f-1f15f517da90"
id"87916c9b-cbac-4dde-a268-b25e261296e9"
is_byokfalse
latency1578
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780314388-PipVcmlX5m6HqkVK3F46"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314388-u6LKQDAuH12Uf2lxhd4i"
upstream_id"87916c9b-cbac-4dde-a268-b25e261296e9"
total_cost0.0073
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195