Run: 2026-05-01-01KQHTA29CQFA0TBHK66YHSZJF

Run Details

Duration:
9.9s
Cost:
$0.001658
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
Fail 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 The text states Sarah's car matches the sky on a clear day. It explicitly rules out green ("The sky is not green on a clear day"), and the well-established fact that a clear daytime sky appears blue supplies the positive identification. No other color is consistent with the given constraints, so the inference is direct and unambiguous.
created_at"2026-05-01T13:05:37.073Z" 5/1/2026, 1:05:37 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8880
moderation_latency(null)
generation_time9891
tokens_prompt59
tokens_completion178
native_tokens_prompt180
native_tokens_completion600
native_tokens_completion_images(null)
native_tokens_reasoning533
native_tokens_cached64
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"completed"
usage0.0016578
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"3d3874c2-9bb0-7713-8920-413a2f0858be"
is_byokfalse
latency98
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777640737-IQMkwhBbgI3YvQhedoQc"
session_id(null)
api_type"completions"
id"gen-1777640737-Vl7mHvc02SfHOdst3R5H"
upstream_id"3d3874c2-9bb0-7713-8920-413a2f0858be"
total_cost0.0016578
cache_discount0.0000672
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
Fail Matches text
Case insensitive: blue
n/a
Pass Matches Regex
/\bblue\b/i
n/a
no eval