OpenAI Fixes GPT-6 Sol/Luna Image Understanding Bug

OpenAI has fixed a bug that degraded image understanding in GPT-6 Sol and Luna, restoring vision tasks in the API and Codex. The company recommends re-running evals for image-input workflows, with details in the official changelog.

2026-09-28 ~ 2026-09-28 · 4 related posts

• OpenAI fixes bug that degraded image understanding in GPT-6 Sol and Luna — OpenAIDevs · 2026-09-28
• OpenAI urges devs to rerun image-input evals after GPT-6 vision fix — OpenAIDevs · 2026-09-28

2 near-duplicate retellings: OpenAIDevs · OpenAIDevs