Run: 2026-09-23-01M37Q6EQ236861H0RT065FZWK

Run Details

Model:
Claude Opus 5.5 (Reasoning)
Test:
Data extraction
Scenario:
What instrument does Lucy play?
Duration:
4.2s
Cost:
$0.001872
Provider:
Claude Platform on AWS

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"2026-09-23T18:07:10.58Z" 9/23/2026, 6:07:10 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3534
moderation_latency(null)
generation_time4172
tokens_prompt74
tokens_completion36
native_tokens_prompt108
native_tokens_completion72
native_tokens_completion_images(null)
native_tokens_reasoning67
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"
usage0.001872
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186830-gh8gjKI3OPlPPmBEMzSL"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186830-87sRWCfmndo6Ge951Sf6"
upstream_id"msg_011CfLpKFAxVk4DbgcMG651k"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLpKFAxVk4DbgcMG651k"
is_byokfalse
latency1222
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.001872
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

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