Run: 2026-03-18-01KM09SXQ73T9K7CN4PCG13NW7

Run Details

Duration:
20.9s
Cost:
$0.001983
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
It was a stormy night in the old mansion where thunder roared loudly outside and rain tapped against the windows. Inspector Harlan carefully examined the ancient bloodstained Persian carpet before noticing the single monogrammed cufflink lying near the cold fireplace. The butler entered the dimly lit room holding a silver tray with a decanter of brandy and three crystal glasses. Several guests sat in stunned silence, faces pale as they stared at the lifeless body sprawled across the Persian rug. Through the half-open door, a faint whisper echoed, barely audible above the howling wind outside the grand estate’s east wing.
created_at"2026-03-18T11:03:00.085Z" 3/18/2026, 11:03:00 AM
model"mistralai/mistral-small-2603" 1/1/2603, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency361
moderation_latency(null)
generation_time20867
tokens_prompt46
tokens_completion3195
native_tokens_prompt51
native_tokens_completion3293
native_tokens_completion_images(null)
native_tokens_reasoning3034
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"
usage0.00198345
router(null)
provider_responses
0
endpoint_id"f5ed6283-4e17-457d-98cd-2ec0c318171d"
id"9ab9f2a0085d4e8a9683a6896352c885"
is_byokfalse
latency349
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-1773831780-G84sfHQ5RrYgjvxl4Vxs"
upstream_id"9ab9f2a0085d4e8a9683a6896352c885"
total_cost0.00198345
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

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