Run: 2026-02-24-01KJ8TKBSJZ2YMM7629NS0YZAS

Run Details

Model:
Claude Sonnet 4.6 (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
2.3s
Cost:
$0.001410
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"2026-02-24T21:59:03.018Z" 2/24/2026, 9:59:03 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency570
moderation_latency(null)
generation_time1867
tokens_prompt75
tokens_completion64
native_tokens_prompt90
native_tokens_completion76
native_tokens_completion_images(null)
native_tokens_reasoning63
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"
usage0.00141
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_01U4eikhp4qzbSNawsKXGQjh"
is_byokfalse
latency543
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771970343-rw3avlXTnZYydwSZKaTs"
upstream_id"msg_01U4eikhp4qzbSNawsKXGQjh"
total_cost0.00141
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