Vision Sol/Luna: update comparisons
This fix may explain recent screenshot errors. Avoid comparing an affected older version with a corrected version as though only the model had changed.
Published Corrigendum
Facts, analysis and limits
Verified facts
- OpenAI fixes an image encoding bug that degrades the visual understanding of GPT-6 Sol and Luna in API and Codex, including the computer use.
- The provider recommends restarting the affected evaluations and workflows using images.
What changes
Replay a small stable set of UI captures and browser tasks. Keep date, model and harness with results.
Practical implication
Re-launch visual tests that failed before September 25.
Availability
API/Codex fix, not a new model release.
Limits and uncertainty
A before/after result may reflect this patch rather than the only generation change in the model.