Run: 2026-05-29-01KSSKCV7MCWEBH1FXQB33EEWA

Run Details

Model:
Claude Opus 4.8 (Reasoning)
Test:
Data extraction
Scenario:
What's the color of the car?
Duration:
1.0s
Cost:
$0.000530
Provider:
Anthropic

Evaluation summary

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

Model input

User/Human
What color is Sarah's car based on the following text? Only return the color, nothing else. John owns a blue car. Sarah's car is the same color as the sky on a clear day. Peter's car is red. The sky is not green on a clear day.

Model response

AI
Blue
created_at"2026-05-29T10:10:07.229Z" 5/29/2026, 10:10:07 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency869
moderation_latency(null)
generation_time964
tokens_prompt59
tokens_completion1
native_tokens_prompt81
native_tokens_completion5
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.00053
router(null)
provider_responses
0
endpoint_id"dfc0e5bd-d703-4fe2-a7bb-655eb95d5441"
id"msg_01Lg8eFn74gpVufHDjedQhpr"
is_byokfalse
latency869
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-1780049407-Tw9nOorG1NsJruazVlu9"
session_id(null)
api_type"completions"
id"gen-1780049407-vQ0naQeM5khsxDr9W9nK"
upstream_id"msg_01Lg8eFn74gpVufHDjedQhpr"
total_cost0.00053
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 insensitive: blue
 n/a
Pass Matches Regex
/\bblue\b/i
 n/a
no eval