NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-12-01KKHZEEY4C3D15RE01KPW03BB
Run Details
Model:
Grok 4.20 (Beta)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
1.9s
Cost:
$0.001796
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
86.38%
Matches word count
(details)
0.00%
Dialogue to Total Word Ratio
(details)
43.1902%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% 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 adjusted her glittery party hat and peered through the bushes at the backyard full of shrieking kids. “Bill, I still say this is your dumbest idea since the great daycare diaper heist of ’22.” Bill popped a juice box straw into his mouth like a cigar. “Relax. We hit the gift table during musical chairs. Total chaos. Nobody notices two extra grown-ups in balloon pants.” “We’re wearing balloon pants?” Molly hissed. “I thought we agreed on clown disguises.” “Clowns are suspicious. Balloon pants scream ‘fun uncle.’ Big difference. Pass the juice boxes, I need more fake sugar courage.” “You’re going to drink yourself into a diabetic coma before we even breach the bouncy castle,” she muttered. “Priorities, Mol. Look, the birthday boy’s about to do the candle thing. That’s our window. I grab the big shiny ones, you create a diversion with the piñata. Classic misdirection.” Molly sighed. “If we get caught stealing toys from toddlers, I’m telling the cops you put me up to it.” Bill grinned. “Fair. Just make sure you stuff the getaway van with enough goodie bags to look like we’re parents. Ready?” “Ready to regret every life choice that led here,” Molly said, and they both stepped out of the bushes wearing matching balloon pants.
created_at
"2026-03-12T21:32:36.682Z"
3/12/2026, 9:32:36 PM
model
"x-ai/grok-4.20-beta-20260309"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
299
moderation_latency
(null)
generation_time
1757
tokens_prompt
77
tokens_completion
348
native_tokens_prompt
182
native_tokens_completion
277
native_tokens_completion_images
0
native_tokens_reasoning
0
native_tokens_cached
128
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
0.0017956
router
(null)
provider_responses
0
endpoint_id
"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id
"7753901b-3199-49bc-2349-a6325cdd41fa"
is_byok
false
latency
254
model_permaslug
"x-ai/grok-4.20-beta-20260309"
provider_name
"xAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer
(null)
api_type
"completions"
id
"gen-1773351156-bpki27LieCpir2n144DK"
upstream_id
"7753901b-3199-49bc-2349-a6325cdd41fa"
total_cost
0.0017956
cache_discount
0.0002304
upstream_inference_cost
0
provider_name
"xAI"
Evaluation details
Result
Evaluator
Details
Meta Data
86.38%
Matches word count
n/a
neededClean
false
words
211
0.00%
Dialogue to Total Word Ratio
Ratio: 75.47%, Deviation: 25.47%
neededClean
false
wordsTotal
212
wordsDialogue
160
43.1902%