Run: 2026-02-24-01KJ8V8WRKQ5MFT3856YX6ZKA0

Run Details

Model:
Claude Sonnet 4.6 (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
1.9s
Cost:
$0.001425
Provider:
Amazon Bedrock

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"2026-02-24T22:10:48.22Z" 2/24/2026, 10:10:48 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency664
moderation_latency127
generation_time1753
tokens_prompt75
tokens_completion65
native_tokens_prompt90
native_tokens_completion77
native_tokens_completion_images(null)
native_tokens_reasoning64
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"
usage0.001425
router(null)
provider_responses
0
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
id"9e19efba-6b78-4f0e-bda4-eca9e4b632ab"
is_byokfalse
latency662
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771971048-23f3WpdGwMojftYIgdHS"
upstream_id"9e19efba-6b78-4f0e-bda4-eca9e4b632ab"
total_cost0.001425
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"

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