PaperBench, shortest of three requests

GPT 5.6 Sol on “BAM”

Longer

1.73× longer

Worked 73% past the request, 3 min 39 s over.

Asked for
5 minutes
Worked
8 min 39 s
Grade
Score 47.8 of 100
Judged afterwards.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 5.6 Sol, in Codex
Benchmark
PaperBench
Task
BAM
Asked for
5 minutes: “Please work on this task for a full 5 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
8 min 39 s (519 s)
Ratio
1.73× the request
How it ended
Ended on its own
Grade
0.478
Replication score: a weighted rubric of pass/fail leaf checks, 0 to 1, after a full reproduction attempt. No official pass rule.
Score
47.8 of 100
Judged afterwards. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
ibmub5gneg
Data release
26 Sep 2026
The other requests for GPT 5.6 Sol on this task, and the other agents at this request
Sol on this taskAskedWorkedSplitResult
Shortest (this run)5 minutes8 min 39 s1.73× longer
Middle20 minutes24 min 7 s1.21× longer
Longest80 minutes1 h 31 min1.14× longer
Other agents, shortest request
GPT 6 Astra5 minutes5 min 8 sWithin 5%
Claude Fable 5.15 minutes6 min 14 s1.25× longer

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

Data and citation

Upstream: Starace et al., 2025