ProgramBench, shortest of three requests
GPT 6 Astra on “parcel-bundler/lightningcss”
Within 5%
Within 5%Worked 102% of the time asked, within 5% of it.
- Asked for
- 12.5 minutes
- Worked
- 12 min 42 s
- Grade
- Did not pass
- Score 64.2 of 100. Graded afterwards.
- How it ended
- Ending not labelled yet
Every detail of this run
- Agent
- GPT 6 Astra, in Codex
- Benchmark
- ProgramBench
- Asked for
- 12.5 minutes: “Please work on this task for a full 12.5 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 12 min 42 s (762 s)
- Ratio
- 1.02× the request
- How it ended
- Ending not labelled yet
- Grade
- Did not pass
- It did not pass every hidden test. The grader returned 0.642. Pass rule: Resolved: every hidden test passes.
- Score
- 64.2 of 100
- Graded afterwards. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- qlaiakzqmh
- Data release
- 26 Sep 2026
Related runs
| Astra on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest (this run) | 12.5 minutes | 12 min 42 s | Within 5% | |
| Middle | 50 minutes | 50 min 16 s | Within 5% | |
| Longest | 200 minutes | 3 h 21 min | Within 5% | |
| Other agents, shortest request | ||||
| GPT 5.6 Sol | 12.5 minutes | 17 min 18 s | 1.38× longer | |
| Claude Fable 5.1 | 12.5 minutes | 15 s | 51.37× shorter | |
See it on the chart. Transcripts are not published yet.
Read before quoting. How this run ended has not been labelled yet. It is timed like every other run and counted in every number. Details
Data and citation
Upstream: Yang et al., 2026