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v0.9.0: Runware FLUX.1 schnell as default image provider

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New Runware image backend at ~$0.0006/image (FLUX.1 schnell) — 65× cheaper
than Gemini 2.5 Flash Image. Provider mirrors OpenRouter's split: interface
+ provider + support + pricing + batch, all under the 300-line cap. Batch
class uses curl_multi for true parallel A/B dispatch — wall-clock drops to
the slowest single image instead of the sum.

Changes:
- Add PRAutoBlogger_Runware_Image_Provider + Pricing + Support + Batch
- Flip PRAUTOBLOGGER_DEFAULT_IMAGE_PROVIDER/MODEL to runware:100@1
- Add prautoblogger_runware_api_key settings field (encrypted at rest)
- v0.9.0 one-time migration flips legacy default model + re-derives provider
- Wire runware branch into Image_Pipeline::create_default_provider()
- Add runware:100@1 and runware:101@1 to Image_Model_Registry (defaults top)
- Update image prompt builder: no more anthropomorphized molecules;
  prefer concrete human-scale scenes (gym bros, doctors, scientists)
- ARCHITECTURE.md + CHANGELOG.md updated with new integration + decision
- Unit tests for pricing, support, provider; update model registry test

Cost impact at 100 images/day (50 articles × A/B):
- Before (Gemini via OpenRouter): $3.90/day ≈ $117/mo
- After  (FLUX schnell via Runware): $0.06/day ≈ $1.80/mo
Net saving: ~$115/mo
This commit is contained in:
peptiderepo
2026-04-21 15:56:35 +00:00
parent 80a7e11a2b
commit 2cacaa3512
18 changed files with 1613 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
includes/core/class-image-pipeline.php
View File

@@ -17,22 +17,19 @@ declare(strict_types=1);
class PRAutoBlogger_Image_Pipeline {
/**
* Default image dimensions (landscape).
* Default image dimensions (landscape). 1200×632 is the closest
* 8-aligned pair to the standard OG image size (1200×630). Some
* providers require dimensions divisible by 8.
*/
// Dimensions must be divisible by 8 (required by some providers).
// 1200×632 is the closest 8-aligned pair to the standard OG image size (1200×630).
private const DEFAULT_WIDTH = 1200;
private const DEFAULT_HEIGHT = 632;
/** @var PRAutoBlogger_Image_Provider_Interface Image gen provider. */
private PRAutoBlogger_Image_Provider_Interface $provider;
/** @var PRAutoBlogger_Image_Prompt_Builder Builds scene + caption from article data. */
private PRAutoBlogger_Image_Prompt_Builder $prompt_builder;
/** @var PRAutoBlogger_Image_Media_Sideloader Downloads images into WP media library. */
private PRAutoBlogger_Image_Media_Sideloader $sideloader;
/** @var PRAutoBlogger_Cost_Tracker Logs image generation spend. */
private PRAutoBlogger_Cost_Tracker $cost_tracker;
@@ -41,7 +38,7 @@ class PRAutoBlogger_Image_Pipeline {
*
* When no provider is injected, the constructor reads the
* `prautoblogger_image_provider` setting and instantiates the
* matching concrete class ('openrouter' or 'cloudflare').
* matching concrete class ('runware', 'openrouter', or 'cloudflare').
*
* @param PRAutoBlogger_Image_Provider_Interface|null $provider Optional provider override.
* @param PRAutoBlogger_Cost_Tracker|null $cost_tracker Optional cost tracker.
@@ -63,6 +60,9 @@ class PRAutoBlogger_Image_Pipeline {
*/
private static function create_default_provider(): PRAutoBlogger_Image_Provider_Interface {
$provider_id = (string) get_option( 'prautoblogger_image_provider', PRAUTOBLOGGER_DEFAULT_IMAGE_PROVIDER );
if ( 'runware' === $provider_id ) {
return new PRAutoBlogger_Runware_Image_Provider();
}
if ( 'openrouter' === $provider_id ) {
return new PRAutoBlogger_OpenRouter_Image_Provider();
}