Run: 2026-05-31-01KSYX9Y8F5P2W3RH3J0T30N44

Run Details

Model:
Claude Opus 4.8 (Reasoning, High)
Test:
Data extraction
Scenario:
Who's the tallest?
Duration:
3.0s
Cost:
$0.002280
Provider:
Anthropic

Evaluation summary

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

Model input

User/Human
Who is the tallest person based on the following text? Only return the name, nothing else. Jack is shorter than Jill. Jill is taller than Tom but shorter than Sarah. Mike is the same height as Jack.

Model response

AI
Sarah
created_at"2026-05-31T11:39:29.947Z" 5/31/2026, 11:39:29 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2304
moderation_latency(null)
generation_time2933
tokens_prompt52
tokens_completion64
native_tokens_prompt76
native_tokens_completion76
native_tokens_completion_images(null)
native_tokens_reasoning62
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"
usage0.00228
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01XfPxWmnS85UgKK5i29Rbww"
is_byokfalse
latency1016
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780227569-eFBJVqmeawxny00DiI6b"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227569-gbBFGrU13qEq5JGFuioP"
upstream_id"msg_01XfPxWmnS85UgKK5i29Rbww"
total_cost0.00228
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
Pass Matches text
Case sensitive: Sarah
 n/a
Pass Matches Regex
/\bSarah\b/
 n/a
no eval