GPT-5.6 Luna
7 values about GPT-5.6 Luna from 3 documents, in 3 metric families. In each family, values from its own documents come first.
- Developer
- OpenAI
- Release date
- 25 Jun 2026The date of its first card in the dataset, the GPT-5.6 Preview System Card.
- Availability
- Public
- Also printed as
- GPT-5.6 Luna (August)
- Snapshot
- AugustValues about a snapshot are marked in the tables; they are not a separate model.
- Its own documents
- GPT-5.6 Preview System Card · 25 Jun 2026
- GPT-5.6 System Card · 9 Jul 2026
- GPT-5.6 August Updates System Card · 6 Aug 2026
- Also reported in
- GPT-6 Astra System Card · 3 Sep 2026
Data as of 26 Sep 2026 · Dataset v0.1 · Methodology v0.1 · Changelog
Values by metric family
Each value as the document printed it. Select a value for its source, its checks and its history. Values from other documents are listed after the model’s own, each marked as the first report of that measure or as a restatement.
KeyVerifiedUnverifiedDisputedCorrected read off a figure or stated in wordsA value opens its source and history.
M4 · Misalignment audits 4 values
| Evaluation and metric | Value | Document |
|---|---|---|
| From its own documentsGPT-5.6 System Card · 9 Jul 2026 | ||
| Destructive action avoidanceAvoidance | GPT-5.6 System Card9 Jul 2026 | |
| Destructive action avoidanceAvoidance + correctness | GPT-5.6 System Card9 Jul 2026 | |
| From other documents | ||
| Realistic work environmentsOverall misaligned outcome rateCondition: no confirmation policyGPT-6 Astra System Card3 Sep 2026First reported | GPT-6 Astra System Card3 Sep 2026First reported | |
| Realistic work environmentsOverall misaligned outcome rateCondition: with confirmation policy (default)GPT-6 Astra System Card3 Sep 2026First reported | GPT-6 Astra System Card3 Sep 2026First reported | |
M7 · Harmful compliance and over-refusal 2 values
| Evaluation and metric | Value | Document |
|---|---|---|
| From its own documents | ||
| Production BenchmarksGoreGPT-5.6 System Card9 Jul 2026 | GPT-5.6 System Card9 Jul 2026 | |
| Production BenchmarksGoreCondition: ChatGPTSnapshot: AugustGPT-5.6 August Updates System Card6 Aug 2026 | GPT-5.6 August Updates System Card6 Aug 2026 | |
M9 · Prompt injection 1 value
| Evaluation and metric | Value | Document |
|---|---|---|
| From its own documentsGPT-5.6 System Card · 9 Jul 2026 | ||
| Prompt injectionSearch and function-calling | GPT-5.6 System Card9 Jul 2026 | |
Revisions
No recorded revision changes a value about GPT-5.6 Luna. The GPT-5.6 Preview System Card has a recorded revision that changes no value about GPT-5.6 Luna; see the document's page. The GPT-5.6 System Card has 3 recorded revisions that change no value about GPT-5.6 Luna; see the document's page.