When --output-format is specified for GPT models, save files with
the correct extension (.webp, .jpeg, or .png) instead of always
using .png.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Auto-detect model and apply appropriate defaults for size/quality
- Add --background, --output-format, and --style parameters
- Enforce dall-e-3 count=1 limitation with automatic adjustment
- Omit quality parameter for dall-e-2 (not supported)
- Document model-specific parameters and supported values
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
