Run: 2026-10-07-01M4AVP8405F7Q9N291GEE80DS

Run Details

Duration:
18.5s
Cost:
$0.004607
Provider:
Mistral

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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain fell hard on the cobblestones of London, turning the narrow alley into a river of mud and darkness. Detective Inspector Abernathy pulled his collar tight, watching the gas lamp flicker wildly in the freezing November wind tonight alone. A woman's scream pierced the silence from somewhere deep within the abandoned warehouse at the very end of this street. He drew his service revolver and ran toward the sound, his boots splashing through puddles on the wet pavement below. The warehouse door hung open like a dark mouth, revealing only shadows and the smell of copper and death inside.
created_at"2026-10-07T09:39:07.53Z" 10/7/2026, 9:39:07 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2801
moderation_latency(null)
generation_time18438
tokens_prompt46
tokens_completion1770
native_tokens_prompt38
native_tokens_completion2192
native_tokens_completion_images(null)
native_tokens_reasoning1621
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"stop"
service_tier"default"
usage0.00460712
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791365947-fJKbtyhCpks3OxN07OpK"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791365947-cFxKvv2Zl8HUj1UVePzD"
upstream_id"a051ad2605234c39824676fb5b059410"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"a051ad2605234c39824676fb5b059410"
is_byokfalse
latency871
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00460712
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420