Run: 2026-04-24-01KQ0G4C6ZM4XHZAV51KFH9ZNH

Run Details

Duration:
3.8s
Cost:
$0.006375
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. Detective Mara Quinn arrived late. The manor loomed in darkness. One window flickered with candlelight. A woman screamed from inside. Mara drew her service revolver. She climbed the marble steps. The heavy oak door creaked. Blood pooled across the foyer. A man lay face down. His hand clutched torn paper. Three names were written there. Mara recognized the first name. It belonged to her sister. Thunder cracked above the roof. Footsteps echoed down the hallway. Someone else was still here. Mara raised her weapon slowly. The candle suddenly went out.
created_at"2026-04-24T19:40:39.524Z" 4/24/2026, 7:40:39 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1217
moderation_latency(null)
generation_time3772
tokens_prompt46
tokens_completion187
native_tokens_prompt65
native_tokens_completion242
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"
usage0.006375
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"3a947344-433e-4ae3-8f87-b5c5d2cb9487"
is_byokfalse
latency662
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-1777059639-49fntDIyyUVfTqlbUJ4g"
session_id(null)
api_type"completions"
id"gen-1777059639-Yhlhu9yeguLGmz8f0f2Y"
upstream_id"3a947344-433e-4ae3-8f87-b5c5d2cb9487"
total_cost0.006375
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
sentences19
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185