Run: 2026-04-24-01KPZTZCA78W702ZWK3FGHR59T

Run Details

Duration:
3.8s
Cost:
$0.005750
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 drummed against the window. Detective Sarah Chen sipped coffee. The phone rang at midnight. A body was discovered downtown. She grabbed her wool coat. The drive took twenty minutes. Red lights painted wet streets. Officers huddled near the alley. Yellow tape fluttered in wind. The victim lay face down. Blood pooled beneath his chest. No wallet remained on him. His watch was still ticking. Sarah knelt beside the corpse. Something glinted in his palm. A small brass key shone. She photographed the strange object. The rain kept falling harder. This case felt deeply personal. She just didn't know why.
created_at"2026-04-24T13:30:55.702Z" 4/24/2026, 1:30:55 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency874
moderation_latency(null)
generation_time3751
tokens_prompt46
tokens_completion152
native_tokens_prompt65
native_tokens_completion217
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"
usage0.00575
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"f0dc4c70-f8be-4c54-bc23-c2b089a5a7eb"
is_byokfalse
latency873
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-1777037455-orIAjSVVPOPxXFAz3QQS"
session_id(null)
api_type"completions"
id"gen-1777037455-fKIeH5bKldws5GwI1WDd"
upstream_id"f0dc4c70-f8be-4c54-bc23-c2b089a5a7eb"
total_cost0.00575
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
sentences20
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195