Run: 2026-02-24-01KJ8WN0ZT742PSSH7B3ZRBXPD

Run Details

Model:: Claude Opus 4.6 (Reasoning)
Test:: N-Length Sentences
Scenario:: Write sentences with 5 words each
Duration:: 15.4s
Cost:: $0.027955
Provider:: Amazon Bedrock

Evaluation summary

Score	Evaluator	Details Link
100.00%	Matches word count	(details)

Model input

User/Human

Please write the opening scene of a murder mystery where each sentence has exactly 5 words.
Please make sure that each sentence has the same length. Only return the opening itself.

Model response

The body lay face down. Blood pooled on cold marble. Detective Marsh entered the room. She studied the grim scene. No one had heard screams. The mansion felt eerily quiet. A broken glass caught light. Red wine stained the carpet. The victim was Eleanor Price. She hosted dinner last night. Twelve guests had been invited. One of them did this. Marsh knelt beside the body. The wound told its story. This was no random act. Someone here wanted her dead. Marsh pulled out her notebook. Tonight would be very long.

Evaluation details

Result

Evaluator

Details

Meta Data

100.00%

Matches word count

n/a

neededClean

false

sentences

wordCounts

0	5
1	5
2	5
3	5
4	5
5	5
6	5
7	5
8	5
9	5
10	5
11	5
12	5
13	5
14	5
15	5
16	5
17	5