Run: 2026-07-01-01KWE9XPDG2JJPTGEF91KJKY0P

Run Details

Duration:
8.0s
Cost:
$0.006740
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 old mansion. Lightning cracked across the sky. Inside, someone screamed once loudly. Then silence swallowed the house. A butler found the body. Blood pooled beneath the desk. The victim clutched a letter. Detective Hale arrived at midnight. He studied the locked door. No windows showed any damage. Someone inside had killed him. Hale smiled at the mystery.
created_at"2026-07-01T07:40:00.316Z" 7/1/2026, 7:40:00 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3967
moderation_latency(null)
generation_time7950
tokens_prompt46
tokens_completion153
native_tokens_prompt60
native_tokens_completion662
native_tokens_completion_images(null)
native_tokens_reasoning59
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"
usage0.00674
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01ALZGW5hkXxzVfcPHYXuvsz"
is_byokfalse
latency1940
model_permaslug"anthropic/claude-sonnet-5-20260630"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.17.0; linux; x64))"
http_referer(null)
request_id"req-1782891600-469iIQp18R4almquTexO"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891600-0uZkl1uO2B99g5BDPajN"
upstream_id"msg_01ALZGW5hkXxzVfcPHYXuvsz"
total_cost0.00674
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
sentences12
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115