Run: 2026-04-24-01KPZTYSK6RP1ERR5P1865F74J

Run Details

Duration:
3.9s
Cost:
$0.005850
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 against the windows of Ashford Manor that night. Detective Miles Corbin arrived precisely at seven minutes past midnight. The butler greeted him with a face drained of color. Inside the library, Lord Ashford lay sprawled across the carpet. A silver letter opener protruded from his starched white shirt. Blood had pooled beneath him in a dark crimson halo. Six guests waited anxiously in the adjoining drawing room beyond. Each claimed they had heard nothing unusual before the scream. Miles studied the scene with sharp, methodical, unwavering gray eyes. Someone in this house was lying through their perfect teeth.
created_at"2026-04-24T13:30:36.53Z" 4/24/2026, 1:30:36 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1090
moderation_latency(null)
generation_time3842
tokens_prompt46
tokens_completion158
native_tokens_prompt65
native_tokens_completion221
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.00585
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"f06ed53e-e543-46fb-930b-9e416f13dd81"
is_byokfalse
latency1090
model_permaslug"anthropic/claude-4.7-opus-20260416"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777037436-U1L0dsGDMAiINphbMXxx"
session_id(null)
api_type"completions"
id"gen-1777037436-AKke3STsXRTa93eWKt1i"
upstream_id"f06ed53e-e543-46fb-930b-9e416f13dd81"
total_cost0.00585
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910