Run: 2026-09-25-01M3CKEDP60CAN1SCT8D3PT0J5

Run Details

Duration:
2.3s
Cost:
$0.001187
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
15.00% 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 grand library fell silent as the clock struck midnight with an eerie, echoing chime through the dusty halls. Detective Marlowe adjusted his coat, eyes scanning the shadowed shelves where secrets lurked behind leather-bound spines. A single candle flickered on the mahogany desk, casting long, trembling shadows across the scattered, bloodstained papers. The victim lay sprawled near the fireplace, a silver letter opener buried deep in his motionless, pale chest. Whispers of betrayal hung in the air, each suspect’s alibi crumbling like ash beneath the weight of suspicion. Outside, the storm raged violently, thunder masking the faint creak of footsteps on the ancient, groaning floorboards.
created_at"2026-09-25T15:37:49.516Z" 9/25/2026, 3:37:49 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency417
moderation_latency(null)
generation_time2231
tokens_prompt46
tokens_completion179
native_tokens_prompt51
native_tokens_completion148
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"
usage0.0011865
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350669-GhnKO994HLgdLyC2jx5e"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350669-2P4RPIaB5pZcfWnpz4Z7"
upstream_id"a8ffeb6b7b6845dc91c993867b8a0233"
provider_responses
0
endpoint_id"38ef23a9-5cb3-46fa-85ec-7aed174f04eb"
id"a8ffeb6b7b6845dc91c993867b8a0233"
is_byokfalse
latency417
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.0011865
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
15.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
019
116
217
318
418
517