Run: 2026-04-24-01KQ0G1B21BE8AXNJ57P3HETTS

Run Details

Duration:
5.2s
Cost:
$0.008100
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
99.15% 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
The rain fell that night. Marlow found the body first. Blood pooled beneath the desk. Her eyes stared at nothing. A letter opener lay nearby. Someone had wiped it clean. The study smelled of smoke. Cigar ash dusted the carpet. An empty glass sat waiting. Whiskey still coated its rim. The window remained locked tight. No footprints marked the garden. Marlow knelt beside the victim. He recognized her painted face. Eleanor Vance had come home. She should have stayed away. Voices murmured in the hallway. The family was gathering now. Each wore practiced looks of grief. Wait, that broke the rule. Let me try again now. Each of them despised her. Each had reason to kill. Marlow closed his tired eyes. This case would ruin someone. Perhaps it would ruin him.
created_at"2026-04-24T19:39:00.04Z" 4/24/2026, 7:39:00 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1367
moderation_latency(null)
generation_time5100
tokens_prompt46
tokens_completion231
native_tokens_prompt65
native_tokens_completion311
native_tokens_completion_images(null)
native_tokens_reasoning39
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"
usage0.0081
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"60512c3c-b088-4180-9bc9-f3907089db0a"
is_byokfalse
latency827
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-1777059540-ZcW74LHhWU5Cu3qqEO56"
session_id(null)
api_type"completions"
id"gen-1777059540-GRDtXfwCvQuNCGVGhJRn"
upstream_id"60512c3c-b088-4180-9bc9-f3907089db0a"
total_cost0.0081
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.15% Matches word count n/a
neededCleanfalse
sentences26
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
186
195
205
215
225
235
245
255