Run: 2026-10-07-01M4AT6W7G0CMH05EVSTZ41E0Y

Run Details

Duration:
26.0s
Cost:
$0.005606
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 clock struck midnight when the old woman discovered the body lying cold upon the bloody grand marble floor tiles. Detective Miller knelt beside her, his gloved hand trembling as he examined the letter opener lodged deep in her chest. Three guests stood frozen in the doorway, their faces pale with shock and fear spreading through the dim silent room. Only one person had left the party early, and that alibi would crumble before the dawn broke over the city.
created_at"2026-10-07T09:13:15.26Z" 10/7/2026, 9:13:15 AM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency625
moderation_latency(null)
generation_time25993
tokens_prompt46
tokens_completion2164
native_tokens_prompt38
native_tokens_completion2670
native_tokens_completion_images(null)
native_tokens_reasoning2048
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"
usage0.00560614
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791364395-danWXH1wpEAYgFwvgFRq"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791364395-ZFT9rLcNwln2LcZUpipI"
upstream_id"0a810361281e478c8307ee04dcd081af"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"0a810361281e478c8307ee04dcd081af"
is_byokfalse
latency614
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00560614
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
sentences4
wordCounts
020
120
220
320