Run: 2026-06-01-01KT1HHK7DK27EKS0252BKTGZK

Run Details

Duration:
8.9s
Cost:
$0.012690
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9998% 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

AI
Molly spread the blueprint across the table, smoothing its wrinkled corners. "The bounce house is our blind spot. No cameras, no parents, just chaos." Bill squinted at the diagram. "And the presents?" "Stacked by the gift table. Unguarded after cake time." "Cake time," Bill repeated, nodding slowly. "When's that?" "Two o'clock. Right after the magician." He frowned. "There's a magician?" "Focus, Bill." Molly tapped the paper. "We slip in dressed as clowns. Nobody questions clowns at a birthday party." "I hate clowns," Bill muttered. "They give me hives." "You'll survive." She handed him a red foam nose. "Put this on." He held it like a dead mouse. "This is undignified." "Stealing from eight-year-olds isn't?" Bill considered this. "Fair point." "We grab the gifts, stuff them in the piñata bag, and walk out the back." "What about the piñata?" Molly paused. "What about it?" "Won't somebody notice it's full of PlayStations instead of candy?" She stared at him. "That's... actually a problem." "I have my moments." "Fine. We use garbage bags." She rolled up the blueprint triumphantly. "By three o'clock, we'll be rich, and forty children will be crying." Bill smiled, slipping on the nose. "Now that's a happy birthday."
created_at"2026-06-01T12:11:41.17Z" 6/1/2026, 12:11:41 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1104
moderation_latency(null)
generation_time8901
tokens_prompt77
tokens_completion343
native_tokens_prompt93
native_tokens_completion489
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.01269
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01GcZAYsPiVmDHx2hFY7y7K2"
is_byokfalse
latency1104
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780315901-K3CCJabJCSizXfOZIt7I"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315901-2pC9ym3OvttdATFkiUPj"
upstream_id"msg_01GcZAYsPiVmDHx2hFY7y7K2"
total_cost0.01269
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
words199
0.00% Dialogue to Total Word Ratio
Ratio: 68.66%, Deviation: 18.66%
neededCleanfalse
wordsTotal201
wordsDialogue138
49.9998%