Run: 2026-03-18-01KM0AH2MHK8Q9TWJE1BT50BCT

Run Details

Model:
Mistral Small 4 (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
4.9s
Cost:
$0.000401
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
87.04% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The storm raged outside as he stepped inside quietly. A single lamp flickered casting eerie shadows everywhere within. The detective observed the scene cautiously scanning each detail carefully. The butler stood rigid, his face pale with shock unveiled. Mrs. Black's voice trembled when she spoke the words out. Blood stained the Persian rug near the fireplace's edge.
created_at"2026-03-18T11:15:38.78Z" 3/18/2026, 11:15:38 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency363
moderation_latency(null)
generation_time4862
tokens_prompt46
tokens_completion697
native_tokens_prompt51
native_tokens_completion656
native_tokens_completion_images(null)
native_tokens_reasoning601
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00040125
router(null)
provider_responses
0
endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"c89b1785c34e4e62ada1b50b57d68b8e"
is_byokfalse
latency353
model_permaslug"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
provider_name"Mistral"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773832538-WTTmpz7a8i3hOIRASkxf"
upstream_id"c89b1785c34e4e62ada1b50b57d68b8e"
total_cost0.00040125
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
87.04% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
09
19
210
310
410
59