Fine-tuned Inkling-Small reportedly fixes LaTeX errors in under a second

A team working on Sundial says it fine-tuned Inkling-Small to suggest fixes for LaTeX compilation errors inside the editor in under a second, with the PDF rebuilt afterward. On September 16, 2026, the team said it was rolling out the model that week.

The team says it selected 3,978 examples from 272,000 TeX.StackExchange questions, keeping cases with reproducible errors and accepted answers that compiled. Rewarding successful compilation alone led the model to remove content, it says. Its best approach also rewarded a close match to the solution’s PDF and penalized removed content.