GPQA Diamond, shortest of three requests

Muse Spark 1.3 on “GPQA Diamond closed-book question 15 (Physics)”

Shorter

1.11× shorter

Stopped at 90% of the time asked, 8 s short.

Asked

Worked

Safety cutoff 40 min, off the scale

Asked for: 1.25 minutes
Worked: 1 min 8 s
Grade: Passed; Score 100 of 100. Graded during the run. Not in the paper's scores.
How it ended: Ended on its own

Every detail of this run

Agent: Muse Spark 1.3, in Muse Code
Benchmark: GPQA Diamond
Task: GPQA Diamond closed-book question 15 (Physics)
Asked for: 1.25 minutes: “Please work on this task for a full 1.25 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked: 1 min 8 s (68 s)
Ratio: 0.90× the request
How it ended: Ended on its own
Grade: Passed; It picked the correct letter. The grader returned 1. Pass rule: The answer letter matches the key.
Score: 100 of 100; Graded during the run. Not in the paper's scores.
Clock tool: The agent could call a clock tool to check the requested time.
Wording: The standard sentence, used from 4 September 2026.
Run id: dm4f2woxnc
Data release: 26 Sep 2026

The other requests for Muse Spark 1.3 on this task, and the other agents at this request
Muse on this task	Asked	Worked	Result
Shortest (this run)	1.25 minutes	1 min 8 s	1.11× shorter
Middle	5 minutes	54 s	5.58× shorter
Longest	20 minutes	23 s	52.40× shorter
Other agents, shortest request
GPT 6 Astra	1.25 minutes	1 min 22 s	1.09× longer
GPT 5.6 Sol	1.25 minutes	1 min 33 s	1.24× longer
Claude Fable 5.1	1.25 minutes	1 min 30 s	1.20× longer

See it on the chart. Transcripts are not published yet.

Data and citation