Run: 2026-07-01-01KWE9N8B70FN8KH6EG1T5JC71

Run Details

Duration:
14.2s
Cost:
$0.016900
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered hard against the tall windows of the mansion. Detective Sarah Miles stepped carefully through the creaking front door. The body lay motionless beside the flickering fireplace's dim light. Blood pooled slowly across the antique Persian rug's faded pattern. No one had heard the gunshot ring through midnight silence. Sarah knelt down, carefully examining the victim's cold, lifeless hands. A single silver key glinted brightly beneath the fallen body. Someone inside this old house knew more than they admitted. Sarah rose slowly, her mind already racing with dark suspicion. Tonight, the old mansion would reveal its darkest, deadliest secret.
created_at"2026-07-01T07:35:23.763Z" 7/1/2026, 7:35:23 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3726
moderation_latency(null)
generation_time14144
tokens_prompt46
tokens_completion266
native_tokens_prompt60
native_tokens_completion1678
native_tokens_completion_images(null)
native_tokens_reasoning101
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"
usage0.0169
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01PfARzb18vRPmAe8K1kc5jb"
is_byokfalse
latency1601
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-1782891323-7vYS7v997An5gkE76KDe"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891323-lZPBFfogbHpO2iPmahNm"
upstream_id"msg_01PfARzb18vRPmAe8K1kc5jb"
total_cost0.0169
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910