DeepSWE v1.1, longest of three requests

GPT 6 Astra on “Add RFC 5545 timezone interoperability to dateutil recurrence parsing”

Within 5%

Within 5%

Worked 102% of the time asked, within 5% of it.

Asked for
60 minutes
Worked
1 h 1 min
Grade
Passed
Score 100 of 100. Graded during the run.
How it ended
Ended on its own
Every detail of this run
Agent
GPT 6 Astra, in Codex
Benchmark
DeepSWE v1.1
Asked for
60 minutes: “Please work on this task for a full 60 minutes. Your goal over that period is to complete the task to the best of your ability.”
Worked
1 h 1 min (3,656 s)
Ratio
1.02× the request
How it ended
Ended on its own
Grade
Passed
It passed its hidden tests. The grader returned 1. Pass rule: The hidden tests pass.
Score
100 of 100
Graded during the run. The paper's value.
Wording
The standard sentence, used from 4 September 2026.
Run id
5ymj4qguk3
Data release
26 Sep 2026
The other requests for GPT 6 Astra on this task, and the other agents at this request
Astra on this taskAskedWorkedSplitResult
Shortest4 minutes4 min 23 s1.09× longer
Middle15 minutes15 min 34 sWithin 5%
Longest (this run)60 minutes1 h 1 minWithin 5%
Other agents, longest request
GPT 5.6 Sol60 minutes1 h 1 minWithin 5%
Claude Fable 5.160 minutes27 min 40 s2.17× shorter

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

Data and citation

Upstream: Huang et al., 2026