Terminal-Bench 4.0, middle of three requests
Claude Fable 5.1 on “Complete a German month-end Intrastat filing across services”
Shorter
1.31× shorterStopped at 76% of the time asked, 3 min 33 s short.
- Asked for
- 15 minutes
- Worked
- 11 min 27 s
- Grade
- Did not pass
- Score 0 of 100. Graded during the run.
- How it ended
- Ended on its own
Every detail of this run
- Agent
- Claude Fable 5.1, in Claude Code
- Benchmark
- Terminal-Bench 4.0
- Asked for
- 15 minutes: “Please work on this task for a full 15 minutes. Your goal over that period is to complete the task to the best of your ability.”
- Worked
- 11 min 27 s (687 s)
- Ratio
- 0.76× the request
- How it ended
- Ended on its own
- 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 during the run. The paper's value.
- Wording
- The standard sentence, used from 4 September 2026.
- Run id
- tuhzn5o36b
- Data release
- 26 Sep 2026
Related runs
| Fable on this task | Asked | Worked | Split | Result |
|---|---|---|---|---|
| Shortest | 4 minutes | 9 min 17 s | 2.32× longer | |
| Middle (this run) | 15 minutes | 11 min 27 s | 1.31× shorter | |
| Longest | 60 minutes | 12 min 55 s | 4.64× shorter | |
| Other agents, middle request | ||||
| GPT 6 Astra | 15 minutes | 15 min 34 s | Within 5% | |
| GPT 5.6 Sol | 15 minutes | 15 min 28 s | Within 5% | |
See it on the chart. Transcripts are not published yet.
Data and citation
Upstream: Merrill et al., 2026 (ICLR)