NC Bench
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Run: 2026-02-20-01KHY9AY6KES3JJ0233R29K9QV
Run Details
Model:
Grok 4 Fast
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
2.8s
Cost:
$0.000240
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Count dialogue tags
(details)
Model input
User/Human
You are an expert novel writer in the cozy mystery genre. Write a scene of about 200 words, with dialogue between two characters. The dialogue should be unattributed, meaning the speaker is not explicitly mentioned. The scene should be set in a small town bakery. Only return the story, nothing else.
Model response
Messages
Meta
AI
The bell above the bakery door tinkled as sunlight slanted through lace curtains, gilding the glass case of cinnamon rolls and berry tarts. Flour dusted the wooden counter, and the air hummed with the scent of yeast and vanilla. Behind it, shelves groaned under jars of preserves, while a chalkboard menu advertised the daily special: lavender scones. "Another one gone missing? That's the third antique brooch this month." "Shh, not so loud. Mrs. Hargrove's already whispering about it at the knitting circle. Found the display case at the antique shop jimmied open at dawn." "Think it's that drifter passing through? Or maybe old Mr. Wilkins, with his sticky fingers and that new ailment he won't name." A pause, the clink of a spoon against porcelain as tea steamed in mismatched mugs. "Not Wilkins. He can barely lift a teacup these days. No, it's someone local, mark my words. Remember the note tucked in the last victim's mailbox? 'Curiosities belong to the curious.' Sounds like a riddle from one of those detective novels you devour." "Flattered, but let's not jump to ghosts or goblins. Pass the scones—I'll poke around the flower shop tomorrow. Agnes sees everything from her window." Laughter bubbled up, soft as rising dough, as the afternoon shadows lengthened.
created_at
"2026-02-20T19:44:56.543Z"
2/20/2026, 7:44:56 PM
model
"x-ai/grok-4-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1220
moderation_latency
(null)
generation_time
2583
tokens_prompt
81
tokens_completion
332
native_tokens_prompt
217
native_tokens_completion
458
native_tokens_completion_images
0
native_tokens_reasoning
179
native_tokens_cached
216
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
usage
0.00024
router
(null)
provider_responses
0
endpoint_id
"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id
"21dc9d3f-095a-2e03-4b90-a17a12df62b5"
is_byok
false
latency
95
model_permaslug
"x-ai/grok-4-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771616696-aRqWrHjX4ZJZFNA9MSgV"
upstream_id
"21dc9d3f-095a-2e03-4b90-a17a12df62b5"
total_cost
0.00024
cache_discount
0.0000324
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Count dialogue tags
n/a
neededClean
false
dialogueTags
(empty)