Run: 2026-06-01-01KT1HVPVRJJ5730H5V9BP9S16

Run Details

Duration:
15.9s
Cost:
$0.006275
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 old mansion. Detective Cole arrived past midnight. The front door stood open. He drew his cold weapon. Silence wrapped around every corner. A woman lay there motionless. Blood pooled beneath her body. Her eyes stared at nothing. Cole knelt beside the victim. Someone had wanted her dead. The clock struck twelve times. Footsteps echoed from the stairs. He spun toward the sound. A shadow vanished down hallways. This night held many secrets.
created_at"2026-06-01T12:17:12.572Z" 6/1/2026, 12:17:12 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2781
moderation_latency(null)
generation_time5834
tokens_prompt46
tokens_completion157
native_tokens_prompt60
native_tokens_completion239
native_tokens_completion_images(null)
native_tokens_reasoning31
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"
service_tier"default"
usage0.006275
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
is_byokfalse
latency10046
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status504
1
endpoint_id"c17fb1eb-dbda-4889-971f-1f15f517da90"
id"990bb181-1b44-4beb-a98d-39d096921d6f"
is_byokfalse
latency1542
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780316232-iVQ6Y5zd94czPM2eR1t4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780316232-jmlKv2a7kmfGg6tRyWFJ"
upstream_id"990bb181-1b44-4beb-a98d-39d096921d6f"
total_cost0.006275
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
sentences15
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145