Run: 2026-07-25-01KYCR2SYTF6HD49Q01BBPS1WQ

Run Details

Model:
Claude Opus 5 (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
3.9s
Cost:
$0.001830
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"2026-07-25T13:40:22.625Z" 7/25/2026, 1:40:22 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3663
moderation_latency(null)
generation_time3743
tokens_prompt74
tokens_completion29
native_tokens_prompt106
native_tokens_completion52
native_tokens_completion_images(null)
native_tokens_reasoning28
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"
usage0.00183
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsSHqYx4K3y9CELxRfR"
is_byokfalse
latency1272
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784986822-2YCYh746wSn6gl0lXUlN"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986822-JUwsM30OBThM5WIYRctj"
upstream_id"msg_011CdNsSHqYx4K3y9CELxRfR"
total_cost0.00183
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

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