Run: 2026-02-08-01KGYXY5YQEW7F5WS70AV2C5QY

Run Details

Model:
Claude Opus 4.6
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
1.8s
Cost:
$0.000465
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
Pass Matches text (details)
Pass Matches Regex (details)
no eval Overall

Model input

User/Human
What instrument does Lucy play based on the following text? Only return the instrument, nothing else. In the school band, there are four instruments: drums, bass, flute, trumped. John plays the drums, Mary plays the flute, and Pete plays the trumpet. Lucy doesn't play a wind instrument.

Model response

AI
Bass
created_at"2026-02-08T15:29:19.03101+00:00" 2/8/2026, 3:29:19 PM
model"anthropic/claude-4.6-opus-20260205"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1653
moderation_latency(null)
generation_time1766
tokens_prompt62
tokens_completion1
native_tokens_prompt73
native_tokens_completion4
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.000465
router(null)
provider_responses
0
id"msg_01MtaRNHDCvquhvcEFGFuWvB"
status200
is_byokfalse
latency1653
endpoint_id"c926c048-563e-44b0-8434-95965bee924c"
provider_name"Anthropic"
model_permaslug"anthropic/claude-4.6-opus-20260205"
api_type"completions"
id"gen-1770564556-L33QNBtIitqTAFAm7y0m"
upstream_id"msg_01MtaRNHDCvquhvcEFGFuWvB"
total_cost0.000465
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case insensitive: bass
 n/a
Pass Matches Regex
/\bbass\b/i
 n/a
no eval