Run: 2026-02-20-01KHYB2VNVP8B3AM0H0W475KFF

Run Details

Model:
Grok 4
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
9.8s
Cost:
$0.005009
Provider:
xAI

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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Fog shrouded the old mansion. Rain pelted the dark windows. Inside, guests gathered for dinner. Lord Harrington welcomed them warmly. Candles flickered on the table. Sudden scream pierced the night. Lights dimmed, then went out. Body slumped in the chair. Blood stained the white napkin. Whispers spread among the guests. Detective arrived at the scene. Mystery began to unfold slowly.
created_at"2026-02-20T20:15:28.971Z" 2/20/2026, 8:15:28 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6499
moderation_latency(null)
generation_time9659
tokens_prompt46
tokens_completion116
native_tokens_prompt719
native_tokens_completion292
native_tokens_completion_images0
native_tokens_reasoning210
native_tokens_cached679
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"completed"
usage0.00500925
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"7e687dae-6fad-f164-e233-54006d585e79"
is_byokfalse
latency178
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771618529-RyURzf7A56oUY6AqsM1m"
upstream_id"7e687dae-6fad-f164-e233-54006d585e79"
total_cost0.00500925
cache_discount0.00152775
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences12
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115