Run: 2026-07-25-01KYCRKM4SEXJGVMZ59NTWSN7Y

Run Details

Duration:
11.9s
Cost:
$0.022700
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 greenhouse glass. Inspector Vale hated wet mornings. The body lay among orchids. Her name was Margaret Ashby. She was sixty and wealthy. A trowel pierced her throat. Blood had dried on petals. Nobody heard her final scream. The greenhouse door was locked. Locked from the inside, apparently. Vale crouched beside the corpse. Something glinted beneath her hand. A brass key, badly bent. Not the greenhouse door key. Sergeant Dunn cleared his throat. The family waits inside, sir. All five of them, together. Each one claims complete innocence. Vale pocketed the bent key. Someone here was lying already. Rain kept hammering the glass.
created_at"2026-07-25T13:49:33.732Z" 7/25/2026, 1:49:33 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3910
moderation_latency(null)
generation_time11754
tokens_prompt46
tokens_completion337
native_tokens_prompt60
native_tokens_completion896
native_tokens_completion_images(null)
native_tokens_reasoning174
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"
usage0.0227
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNt8vCCRC2bQFfaijhxi"
is_byokfalse
latency1371
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-1784987373-CPbbtaYEEawue3dHpwOr"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987373-hWZ2Bu977m1jdO4YBOmW"
upstream_id"msg_011CdNt8vCCRC2bQFfaijhxi"
total_cost0.0227
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
95.00% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
1510
165
175
185
195