Run: 2026-04-24-01KQ0G9TCP0DNQ243KQRCA7Y7A

Run Details

Duration:
3.6s
Cost:
$0.006425
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 hammered the cobblestone street. A woman screamed somewhere nearby. Detective Hollis checked his watch. Midnight had come too soon. The lamppost flickered above him. Shadows stretched across wet bricks. He lit a damp cigarette. Smoke curled into cold air. Then he saw the body. She lay beneath the willow. Blood pooled around her fingers. One shoe rested nearby, upturned. Her eyes stared at nothing. A silver locket caught light. Hollis knelt beside her slowly. The locket bore strange engravings. He recognized the family crest. This case would ruin everything.
created_at"2026-04-24T19:43:37.882Z" 4/24/2026, 7:43:37 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1261
moderation_latency(null)
generation_time3515
tokens_prompt46
tokens_completion226
native_tokens_prompt65
native_tokens_completion244
native_tokens_completion_images(null)
native_tokens_reasoning84
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"
usage0.006425
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"1494bfff-a45c-4c50-a6e4-6cdfef3ba31e"
is_byokfalse
latency683
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-1777059817-0uAaCmc2bXk6vyoU7yRQ"
session_id(null)
api_type"completions"
id"gen-1777059817-NU0gZLvtVXotCKxWrW9B"
upstream_id"1494bfff-a45c-4c50-a6e4-6cdfef3ba31e"
total_cost0.006425
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
sentences18
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175