NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-20-01KHYAH2753AKGNPKF2ZE2ZFYJ
Run Details
Model:
Grok 4 Fast
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
4.2s
Cost:
$0.000308
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
14.30%
Matches word count
(details)
1.30%
Dialogue to Total Word Ratio
(details)
7.8019%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
Molly leaned over the rickety kitchen table, blueprints of the community center spread out like a toddler's finger-painting. Bill paced, gnawing on a stale pretzel. "Listen, Bill, the party's at noon. Kids everywhere, balloons, cake—perfect cover. We slip in as caterers, right? Grab the present pile while they're doing piñata whacks." Bill snorted, spraying crumbs. "Caterers? In these knockoff clown costumes? Molly, we'll look like escaped circus rejects. One kid screams 'bozo alert,' and we're toast." She smirked, twirling a lock of hair. "That's the genius! Kids love clowns. We'll juggle the gifts out—'Hey, kiddos, watch this!' Then stuff 'em in the van during the magician's smoke bomb." "Magician? What if he's legit? Poof—we're allergic to rabbits or something." Bill paused, eyes lighting up. "Nah, I got it. We dress as party characters. I'm Elmo, you're Dora. 'Swiper, no swiping!' Except we do. All the toys, bikes, cash envelopes—poof, gone!" Molly laughed, slapping the table. "Dora? I'd need a backpack full of sedatives. But yeah, Elmo's red fur hides bloodstains if things go south. In and out in ten minutes. The parents'll blame the Tooth Fairy." Bill grinned. "Or Santa on a bender. This haul's our Christmas in July. Let's do it—red noses at dawn!" She nodded, folding the map. "Deal. Just don't tickle me, Elmo."
created_at
"2026-02-20T20:05:45.841Z"
2/20/2026, 8:05:45 PM
model
"x-ai/grok-4-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1781
moderation_latency
(null)
generation_time
3984
tokens_prompt
77
tokens_completion
352
native_tokens_prompt
216
native_tokens_completion
575
native_tokens_completion_images
0
native_tokens_reasoning
239
native_tokens_cached
154
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
0.0003076
router
(null)
provider_responses
0
endpoint_id
"c9586d9d-97ff-40ca-ae94-22504d6f9b7e"
id
"1cf6dc42-f209-7f1e-ac5f-ae77f0ebaefc"
is_byok
false
latency
447
model_permaslug
"x-ai/grok-4-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617945-WlDA0F0baftZXl9KnODL"
upstream_id
"1cf6dc42-f209-7f1e-ac5f-ae77f0ebaefc"
total_cost
0.0003076
cache_discount
0.0000231
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
14.30%
Matches word count
n/a
neededClean
false
words
221
1.30%
Dialogue to Total Word Ratio
Ratio: 75.57%, Deviation: 14.43%
neededClean
false
wordsTotal
221
wordsDialogue
167
7.8019%