Run: 2026-09-25-01M3CKHA8M86B1ANC8A90CC2XE

Run Details

Duration:
1.8s
Cost:
$0.001141
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
92.22% 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 grand mansion loomed under a stormy, moonless night sky. Detective Cole adjusted his coat as rain began to fall. A scream echoed through the halls, sharp and terrifyingly brief. Guests froze mid-conversation, their faces pale with sudden dread. The lights flickered once, then died, plunging all into darkness. A thud came from the library, heavy and unmistakably final. Cole lit a match, its glow revealing a body on floor. Blood pooled around the victim, dark and spreading slowly outward. The butler stood trembling, clutching a silver candlestick tightly. Someone in this room is a murderer, Cole thought grimly.
created_at"2026-09-25T15:39:24.315Z" 9/25/2026, 3:39:24 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency415
moderation_latency(null)
generation_time1730
tokens_prompt46
tokens_completion158
native_tokens_prompt51
native_tokens_completion142
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.0011415
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350764-scMkYV3KeJjny6YDT8no"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350764-dct2n9LHXU9AC65mBRMZ"
upstream_id"5817ead113c5494dbbdc0fff50bd3333"
provider_responses
0
endpoint_id"d21d316f-d540-4718-b36e-3beff85d0cf9"
id"5817ead113c5494dbbdc0fff50bd3333"
is_byokfalse
latency405
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.0011415
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
92.22% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
39
410
510
611
710
89
910