Terminal-Bench 4.0, shortest of three requests
GPT 5.6 Sol on “Repair corrupted pretraining shards and reproduce the intended checkpoint”
Within 5%
Within 5%Worked 101% of the time asked, within 5% of it.
- Asked for
- 20 minutes
- Worked
- 20 min 15 s
- Grade
- Did not pass
- Score 0 of 100. Graded afterwards.
- How it ended
- Ending not labelled yet
Every detail of this run
- Agent
- GPT 5.6 Sol, in Codex
- Benchmark
- Terminal-Bench 4.0
- Asked for
- 20 minutes: “Please work on this task for a full 20 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 20 min 15 s (1,215 s)
- Ratio
- 1.01× the request
- How it ended
- Ending not labelled yet
- Grade
- Did not pass
- It did not pass the task's tests. The grader returned 0. Pass rule: The task's tests pass.
- Score
- 0 of 100
- Graded afterwards. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- phsf4nutjn
- Data release
- 26 Sep 2026
Related runs
| Sol on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest (this run) | 20 minutes | 20 min 15 s | Within 5% | |
| Middle | 80 minutes | 1 h 20 min | Within 5% | |
| Longest | 300 minutes | 5 h 1 min | Within 5% | |
| Other agents, shortest request | ||||
| GPT 6 Astra | 20 minutes | 20 min 18 s | Within 5% | |
| Claude Fable 5.1 | 20 minutes | 33 min 46 s | 1.69× longer | |
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: Merrill et al., 2026 (ICLR)