Internal Research Debugging Evaluation
GPT-6 Astra 78% leads since September 2026
Only in system cards Agents debug difficult problems from OpenAI research work that take researchers hours or days. Scored as mean rubric score.
In-house OpenAI AI self-improvement evaluation. The tasks are not public.
- Made by
- OpenAI
- Released
- April 2026
- Kind
- Labs' internal R&D tests
- Level
- Research frontier
- Scored
- Graded by a model
- Answers
- Agent task
- Tasks
- Kept private
- Strongest model tested
- GPT-6 Astra #3 on the capability index
- Last in a system card
- October 2026
- Last model added
- October 2026
6
Models scored in lab cards
12
System cards report it, from 1 lab
GPT-6 Astra leads with 78%
Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.
- 1 GPT-6 Astra 78%
- 2 GPT-6.1 Terra 76.4%
- 3 GPT-6.1 Sol 75.5%
- 4 GPT-6 Sol 64.2%
- 5 GPT-5.5 50.5%
- 6 GPT-6 Luna 46.6%
Source: Labs’ model cards
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | GPT-6 Astra | 78% | Sep 2026 | Lab model card | |
| 2 | GPT-6.1 Terra | 76.4% | Oct 2026 | Lab model card | |
| 3 | GPT-6.1 Sol | 75.5% | Sep 2026 | Lab model card | |
| 4 | GPT-6 Sol | 64.2% | Sep 2026 | Lab model card | |
| 5 | GPT-5.5 | 50.5% | Apr 2026 | Lab model card | |
| 6 | GPT-6 Luna | 46.6% | Sep 2026 | Lab model card |
2 models have held number one in labs’ own numbers since its release in April 2026
Lab claims count from the day the card came out, independent runs from the model’s release.
OpenAI
Source: Labs’ model cards
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Reported by the lab in its model card
Best so far
Source: Labs’ model cards
Labs report it only in system cards
We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark. Some system cards do, below.
12 system cards report it, from 1 lab
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| Oct 26, 2026 | GPT-6.1 Terra system card addendum | 76.4 | Internal Research Debugging Evaluation, mean rubric score (Figure 29, 9.0.3.1) | AI R&D risk |
| Sep 29, 2026 | GPT-6.1 Sol system card addendum | 75.5 | Internal Research Debugging Evaluation, mean rubric score (9.1.3.1, Figure 37) | AI R&D risk |
| Sep 22, 2026 | GPT-6 Sol system card | 64.2 | Internal Research Debugging, mean rubric reward, printed chart label (Figure 84, A.8.1.3.1) | AI R&D risk |
| Sep 22, 2026 | GPT-6 Luna system card | 46.6 | Internal Research Debugging, mean rubric reward, printed chart label (Figure 84, A.8.1.3.1) | AI R&D risk |
| Sep 3, 2026 | GPT-6 Astra system card | 78 | Internal Research Debugging Evaluation, score (10.1.3.1) | AI R&D risk |
| Jul 9, 2026 | GPT-5.6 Terra system card | Internal Research Debugging Evaluation, rubric score by cost and latency, chart without printed numbers (Figures 37, 38, 9.1.3.1) | AI R&D risk | |
| Jul 9, 2026 | GPT-5.6 Sol system card | Internal Research Debugging Evaluation, rubric score by cost and latency, chart without printed numbers (Figures 37, 38, 9.1.3.1) | AI R&D risk | |
| Jul 9, 2026 | GPT-5.6 Luna system card | Internal Research Debugging Evaluation, rubric score by cost and latency, chart without printed numbers (Figures 37, 38, 9.1.3.1) | AI R&D risk | |
| Jun 25, 2026 | GPT-5.6 Terra system card | Internal Research Debugging Evaluation, rubric score by cost and latency, chart without printed numbers (Figures 37, 38, 9.1.3.1) | AI R&D risk | |
| Jun 25, 2026 | GPT-5.6 Sol system card | Internal Research Debugging Evaluation, rubric score by cost and latency, chart without printed numbers (Figures 37, 38, 9.1.3.1) | AI R&D risk | |
| Jun 25, 2026 | GPT-5.6 Luna system card | Internal Research Debugging Evaluation, rubric score by cost and latency, chart without printed numbers (Figures 37, 38, 9.1.3.1) | AI R&D risk | |
| Apr 23, 2026 | GPT-5.5 system card | 50.5 | Internal Research Debugging Eval, mean rubric score, printed chart label (Figure 20, 9.1.3.3) | AI R&D risk |
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