Run: 2026-07-25-01KYCQY648612A5GTJP3JSW7RY

Run Details

Duration:
16.9s
Cost:
$0.037250
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
The rain had stopped, but the gutters still whispered secrets. Inspector Hale arrived at dawn wearing yesterday's rumpled gray coat. The body lay beneath the pier, face turned toward shore. A woman in a red scarf watched from the railing. She had called the station herself, twenty-three minutes past four. Hale noticed her shoes were dry despite the soaked planks. Sergeant Doyle crouched, lifting the victim's hand with gloved fingers. Three rings, no watch, and a wedding band turned inward. Somebody dressed him carefully before pushing him into the water. The woman spoke first, asking whether they wanted her statement. Hale said nothing, letting the silence stretch between them thin. Gulls circled overhead, patient as lawyers waiting for a verdict. Somewhere behind the warehouses, a church bell counted to seven. She smiled then, and Hale understood the morning had begun.
created_at"2026-07-25T13:37:51.248Z" 7/25/2026, 1:37:51 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3842
moderation_latency(null)
generation_time16783
tokens_prompt46
tokens_completion352
native_tokens_prompt60
native_tokens_completion1478
native_tokens_completion_images(null)
native_tokens_reasoning131
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"
usage0.03725
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsF8jK4gHXqGYxW3hfx"
is_byokfalse
latency1217
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-1784986671-P3QOXglDUlqi0ZENgDYR"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986671-9uWLesd3HnA1USuNjIAH"
upstream_id"msg_011CdNsF8jK4gHXqGYxW3hfx"
total_cost0.03725
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
sentences14
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310