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Run: 2026-07-25-01KYCR29JA9KKD82BYVMBT2E33
Run Details
Model:
Claude Opus 5 (Reasoning, Low)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
11.8s
Cost:
$0.014140
Provider:
Amazon Bedrock
Evaluation summary
Score
Evaluator
Details Link
95.99%
Matches word count
(details)
0.72%
Dialogue to Total Word Ratio
(details)
48.3533%
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 spread the blueprints across the hood of the van, which was actually a laminated placemat from the venue's kids' menu. "East entrance is guarded," she said, tapping a maze printed beside a cartoon giraffe. "Two mothers. Possibly three." "Mothers." Bill swallowed. "Armed?" "Wet wipes. Juice boxes. One had a diaper bag the size of a duffel—could be anything in there." "And the presents?" "Stacked on a folding table under the piñata. Forty, maybe fifty units. Gift bags, boxes, one suspiciously large tricycle." Bill scratched his chin with the crayon he'd been using to annotate. "So we go in loud. Balloon animals, dead giraffe, whatever." "We go in as entertainment," Molly corrected. "You're the clown." "Absolutely not. I have a reputation." "You have a warrant and a wig." "That wig is human hair, Molly. I paid extra." "Then wear it with pride while I load the van." She rolled up the placemat. "You keep them singing. Three verses, minimum. Nobody watches the loot table during cake." Bill stared at the venue's inflatable castle, gently deflating in the drizzle. "What if a child recognizes me?" "From where?" "The last party." Molly paused. "How many parties have you done, Bill?" He counted on his fingers, then stopped at nine.
created_at
"2026-07-25T13:40:05.841Z"
7/25/2026, 1:40:05 PM
model
"anthropic/claude-opus-5-20260723"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2860
moderation_latency
154
generation_time
11517
tokens_prompt
75
tokens_completion
374
native_tokens_prompt
93
native_tokens_completion
547
native_tokens_completion_images
(null)
native_tokens_reasoning
49
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"end_turn"
service_tier
"default"
usage
0.01414
router
(null)
provider_responses
0
endpoint_id
"76cb4608-f48c-483d-8da8-9957fb44244e"
id
"msg_011CdNsR4nxZ3kRDYQegy6nf"
is_byok
false
latency
1433
model_permaslug
"anthropic/claude-opus-5-20260723"
provider_name
"Amazon Bedrock"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1784986805-pUC6LG3xyYkQ6RveJwgy"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1784986805-5XprqXBWmSVM2O4dvic7"
upstream_id
"msg_011CdNsR4nxZ3kRDYQegy6nf"
total_cost
0.01414
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
95.99%
Matches word count
n/a
neededClean
false
words
208
0.72%
Dialogue to Total Word Ratio
Ratio: 64.90%, Deviation: 14.90%
neededClean
false
wordsTotal
208
wordsDialogue
135
48.3533%