fix: expand Runware pricing whitelist to all 15 registry models (v0.14.0)

All Runware model selections except schnell and dev were silently falling
back to runware:100@1 (FLUX.1 schnell) because COST_PER_IMAGE only had 2
entries while the image model registry (v0.13.8) expanded to 15 models.

resolve_model() falls back to schnell for any ID not in COST_PER_IMAGE,
so SD3, FLUX.2, HiDream, TwinFlow, Z-Image, Qwen-Image, Krea, and
GLM-Image all generated schnell images regardless of admin selection.

Fix: add all 15 Runware model IDs to COST_PER_IMAGE and DEFAULT_STEPS
with costs from runware.ai/pricing (April 2026). Add @see cross-ref to
the registry to prevent future drift when new models are added.

CHANGELOG.md

@@ -1,5 +1,46 @@
 # Changelog
 
+All notable changes to PRAutoBlogger will be documented in this file.
+
+Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project uses [Semantic Versioning](https://semver.org/).
+
+## [0.14.0] - 2026-04-26
+
+### Fixed
+- Runware image generation now correctly uses the admin-selected model instead
+  of silently falling back to FLUX.1 schnell (runware:100@1) for all non-schnell
+  and non-dev selections. Root cause: `class-runware-image-pricing.php` only
+  had 2 models in its `COST_PER_IMAGE` whitelist (schnell + dev), but the
+  image model registry was expanded to 15 Runware models in v0.13.8 without a
+  matching update to the pricing class. Any model ID not in the whitelist caused
+  `resolve_model()` to fall back to schnell, so every Stable Diffusion, FLUX.2,
+  HiDream, TwinFlow, Z-Image, Qwen-Image, Krea, and GLM-Image selection was
+  silently downgraded.
+- Added all 15 Runware model IDs to `COST_PER_IMAGE` and `DEFAULT_STEPS` with
+  correct per-image costs and step counts sourced from runware.ai/pricing (April 2026).
+- Added `@see` cross-reference to `class-image-model-registry.php` in pricing
+  class docblock to prevent future drift.
+
+## [0.13.9] - 2026-04-26
+
+### Fixed
+- Model picker sort by price now works correctly for image models — previously
+  \`applySort\` always read \`input_price_per_m\` (undefined on image models),
+  so every image had an effective price of 0 and price sort was a no-op.
+  Fix: detect image models via \`cost_per_image\` and use that field instead.
+
+## [0.13.8] - 2026-04-26
+
+### Added
+- Image model picker expanded from 7 to 21 models
+- New Runware text-to-image models: Stable Diffusion 3, HiDream-I1 Full/Dev/Fast,
+  FLUX.1 Krea [dev], Qwen-Image, FLUX.2 [dev], FLUX.2 [klein] 9B, FLUX.2 [klein] 4B,
+  GLM-Image, Z-Image, Z-Image-Turbo, TwinFlow Z-Image-Turbo
+- New OpenRouter model: openai/gpt-5.4-image-2
+- Registry now includes last-verified date and update instructions in source comment
+
+
 All notable changes to PRAutoBlogger will be documented in this file.
 
 Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),

assets/js/model-picker.js

@@ -101,8 +101,9 @@
 			var valA, valB;
 
 			if ( col === 'price' ) {
-				valA = a.input_price_per_m || 0;
+				// Image models use cost_per_image; text models use input_price_per_m.
-				valB = b.input_price_per_m || 0;
+				valA = ( a.cost_per_image !== undefined ) ? a.cost_per_image : ( a.input_price_per_m || 0 );
+				valB = ( b.cost_per_image !== undefined ) ? b.cost_per_image : ( b.input_price_per_m || 0 );
 			} else if ( col === 'context' ) {
 				valA = a.context_length || 0;
 				valB = b.context_length || 0;

includes/admin/class-image-model-registry.php

@@ -8,6 +8,8 @@ declare(strict_types=1);
  *
  * What: Returns a hardcoded list of image models for the admin model picker.
  *       No API discovery — updated manually when providers add/remove models.
+ *       As of 2026-04-26, registry includes 21 models across Runware (15) and
+ *       OpenRouter (6), ordered cheapest-to-most-expensive within each provider.
  * Who calls it: PRAutoBlogger_Admin_Page (model picker UI + save-time provider
  *               derivation) and PRAutoBlogger_Image_Pipeline (provider lookup).
  * Dependencies: None.
@@ -32,10 +34,15 @@ class PRAutoBlogger_Image_Model_Registry {
 	 * Ordered cheapest-to-most-expensive within each provider, with the
 	 * recommended default (Runware schnell) at the top.
 	 *
+	 * Last verified: 2026-04-26. To update: check https://runware.ai/models (text-to-image section)
+	 * and https://openrouter.ai/api/v1/models filtering output_modalities containing 'image'.
+	 * Exclude: inpainting (needs mask), img2img (needs seedImage), video, upscalers, background removal.
+	 *
 	 * @return array<int, array<string, mixed>>
 	 */
 	public static function get_models(): array {
 		return array(
+			// RUNWARE MODELS
 			array(
 				'id'             => 'runware:100@1',
 				'name'           => 'FLUX.1 schnell (Runware)',
@@ -44,17 +51,122 @@ class PRAutoBlogger_Image_Model_Registry {
 				'capabilities'   => array( 'image_generation' ),
 				'description'    => __( 'Default. Fast, very cheap, comic-friendly fidelity.', 'prautoblogger' ),
 			),
+			array(
+				'id'             => 'runware:twinflow-z-image-turbo@0',
+				'name'           => 'TwinFlow Z-Image-Turbo (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0006,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'Fast text-to-image, same cost as schnell.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:400@2',
+				'name'           => 'FLUX.2 klein 9B (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.00078,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'FLUX.2 compact 9B. Stronger than schnell at similar cost.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:400@4',
+				'name'           => 'FLUX.2 klein 4B (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0006,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'FLUX.2 compact 4B. Newer architecture at schnell price.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:5@1',
+				'name'           => 'Stable Diffusion 3 (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0013,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'Stable Diffusion 3. Sharp text, complex scenes.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:z-image@turbo',
+				'name'           => 'Z-Image Turbo (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0013,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'Fast photorealistic generation.', 'prautoblogger' ),
+			),
 			array(
 				'id'             => 'runware:101@1',
 				'name'           => 'FLUX.1 dev (Runware)',
 				'provider'       => 'runware',
 				'cost_per_image' => 0.02,
 				'capabilities'   => array( 'image_generation' ),
-				'description'    => __( 'Higher fidelity FLUX. ~30x schnell cost.', 'prautoblogger' ),
+				'description'    => __( 'Higher fidelity FLUX.1. ~30x schnell cost.', 'prautoblogger' ),
 			),
+			array(
+				'id'             => 'runware:97@3',
+				'name'           => 'HiDream-I1 Fast (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0038,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'HiDream-I1 Fast. Low latency, 17B quality.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:97@2',
+				'name'           => 'HiDream-I1 Dev (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0045,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'HiDream-I1 Dev. Strong prompt alignment.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:z-image@0',
+				'name'           => 'Z-Image (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0045,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'High-quality Z-Image foundation model.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:400@1',
+				'name'           => 'FLUX.2 dev (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0051,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'FLUX.2 dev. Controllable open text-to-image. From $0.0051.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:108@1',
+				'name'           => 'Qwen-Image (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0058,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'Alibaba Qwen-Image. Strong text rendering in generated images.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:97@1',
+				'name'           => 'HiDream-I1 Full (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.009,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'HiDream-I1 Full. 17B high-fidelity, LoRA support.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:107@1',
+				'name'           => 'FLUX.1 Krea dev (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0098,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'FLUX.1 Krea Dev. Photorealistic open-weight generation.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'runware:glm-image@0',
+				'name'           => 'GLM-Image (Runware)',
+				'provider'       => 'runware',
+				'cost_per_image' => 0.0225,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'GLM-Image. Hybrid autoregressive+diffusion, excellent text rendering.', 'prautoblogger' ),
+			),
+			// OPENROUTER MODELS
 			array(
 				'id'             => 'google/gemini-2.5-flash-image',
-				'name'           => 'Gemini 2.5 Flash Image (Nano Banana)',
+				'name'           => 'Gemini 2.5 Flash Image (OpenRouter)',
 				'provider'       => 'openrouter',
 				'cost_per_image' => 0.005,
 				'capabilities'   => array( 'image_generation' ),
@@ -62,31 +174,39 @@ class PRAutoBlogger_Image_Model_Registry {
 			),
 			array(
 				'id'             => 'google/gemini-3.1-flash-image-preview',
-				'name'           => 'Gemini 3.1 Flash Image (Nano Banana 2)',
+				'name'           => 'Gemini 3.1 Flash Image (OpenRouter)',
 				'provider'       => 'openrouter',
 				'cost_per_image' => 0.008,
 				'capabilities'   => array( 'image_generation' ),
-				'description'    => __( 'Latest Google. Better quality.', 'prautoblogger' ),
+				'description'    => __( 'Latest Google Flash image. Better quality.', 'prautoblogger' ),
-			),
-			array(
-				'id'             => 'google/gemini-3-pro-image-preview',
-				'name'           => 'Gemini 3 Pro Image (Nano Banana Pro)',
-				'provider'       => 'openrouter',
-				'cost_per_image' => 0.03,
-				'capabilities'   => array( 'image_generation' ),
-				'description'    => __( 'Highest quality Google. Premium.', 'prautoblogger' ),
 			),
 			array(
 				'id'             => 'openai/gpt-5-image-mini',
-				'name'           => 'GPT-5 Image Mini',
+				'name'           => 'GPT-5 Image Mini (OpenRouter)',
 				'provider'       => 'openrouter',
 				'cost_per_image' => 0.02,
 				'capabilities'   => array( 'image_generation' ),
 				'description'    => __( 'OpenAI budget image model.', 'prautoblogger' ),
 			),
+			array(
+				'id'             => 'openai/gpt-5.4-image-2',
+				'name'           => 'GPT-5.4 Image 2 (OpenRouter)',
+				'provider'       => 'openrouter',
+				'cost_per_image' => 0.02,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'OpenAI GPT-5.4 image generation.', 'prautoblogger' ),
+			),
+			array(
+				'id'             => 'google/gemini-3-pro-image-preview',
+				'name'           => 'Gemini 3 Pro Image (OpenRouter)',
+				'provider'       => 'openrouter',
+				'cost_per_image' => 0.03,
+				'capabilities'   => array( 'image_generation' ),
+				'description'    => __( 'Highest quality Google image. Premium.', 'prautoblogger' ),
+			),
 			array(
 				'id'             => 'openai/gpt-5-image',
-				'name'           => 'GPT-5 Image',
+				'name'           => 'GPT-5 Image (OpenRouter)',
 				'provider'       => 'openrouter',
 				'cost_per_image' => 0.08,
 				'capabilities'   => array( 'image_generation' ),

includes/providers/class-runware-image-pricing.php

@@ -6,44 +6,86 @@ declare(strict_types=1);
  *
  * Pricing + model-id resolution helpers for the Runware image provider.
  *
- * Each Runware FLUX model has a flat per-image cost sourced from
+ * Each Runware model has a flat per-image cost sourced from
  * runware.ai/pricing (April 2026). Unlike OpenRouter models, Runware
  * prices scale slightly with steps — the quoted rate here assumes the
- * provider's default step count (4 for schnell, 28 for dev).
+ * provider's default step count for each model.
  *
  * Triggered by: PRAutoBlogger_Runware_Image_Provider, PRAutoBlogger_Runware_Image_Batch.
  * Dependencies: None — pure calculation + option reads.
  *
  * @see class-runware-image-provider.php — Primary caller.
  * @see class-open-router-image-pricing.php — Sibling pattern for OpenRouter.
+ * @see admin/class-image-model-registry.php — Source of truth for model list; keep in sync.
  */
 class PRAutoBlogger_Runware_Image_Pricing {
 
 	/**
 	 * Flat per-image cost (USD) for each supported Runware model, April 2026.
-	 * Update here when Runware reprices or new models launch.
+	 * Update here when Runware reprices or new models launch. Must stay in
+	 * sync with the model list in PRAutoBlogger_Image_Model_Registry — any
+	 * model listed there that is absent here will silently fall back to schnell.
 	 *
-	 * Runware model IDs use `family:variant@version` form. The two FLUX
+	 * Runware model IDs use `family:variant@version` form.
-	 * variants we support are the CEO-sanctioned defaults.
 	 *
 	 * @var array<string, float>
 	 */
 	private const COST_PER_IMAGE = array(
-		// FLUX.1 schnell — 4-step distilled. Our new default (2026-04-21).
+		// FLUX.1 schnell — 4-step distilled. Default (2026-04-21).
 		'runware:100@1'                => 0.0006,
-		// FLUX.1 dev — 28-step full model. Higher fidelity, ~30x cost.
+		// TwinFlow Z-Image-Turbo — fast text-to-image, same cost as schnell.
+		'runware:twinflow-z-image-turbo@0' => 0.0006,
+		// FLUX.2 klein 4B — newer architecture at schnell price.
+		'runware:400@4'                => 0.0006,
+		// FLUX.2 klein 9B — stronger than schnell, similar cost.
+		'runware:400@2'                => 0.00078,
+		// Stable Diffusion 3 — sharp text, complex scenes.
+		'runware:5@1'                  => 0.0013,
+		// Z-Image Turbo — fast photorealistic generation.
+		'runware:z-image@turbo'        => 0.0013,
+		// HiDream-I1 Fast — low latency, 17B quality.
+		'runware:97@3'                 => 0.0038,
+		// HiDream-I1 Dev — strong prompt alignment.
+		'runware:97@2'                 => 0.0045,
+		// Z-Image — high-quality foundation model.
+		'runware:z-image@0'            => 0.0045,
+		// FLUX.2 dev — controllable open text-to-image.
+		'runware:400@1'                => 0.0051,
+		// Qwen-Image — strong text rendering in generated images.
+		'runware:108@1'                => 0.0058,
+		// HiDream-I1 Full — 17B high-fidelity, LoRA support.
+		'runware:97@1'                 => 0.009,
+		// FLUX.1 Krea dev — photorealistic open-weight generation.
+		'runware:107@1'                => 0.0098,
+		// FLUX.1 dev — 28-step full model. Higher fidelity, ~30x schnell cost.
 		'runware:101@1'                => 0.02,
+		// GLM-Image — hybrid autoregressive+diffusion, excellent text rendering.
+		'runware:glm-image@0'          => 0.0225,
 	);
 
 	/**
 	 * Default number of inference steps per model. Runware bills per image
 	 * at the model's standard step count; custom step counts may alter price.
+	 * Sources: runware.ai/models (April 2026).
 	 *
 	 * @var array<string, int>
 	 */
 	private const DEFAULT_STEPS = array(
 		'runware:100@1'                    => 4,
+		'runware:twinflow-z-image-turbo@0' => 4,
+		'runware:400@4'                    => 20,
+		'runware:400@2'                    => 20,
+		'runware:5@1'                      => 28,
+		'runware:z-image@turbo'            => 4,
+		'runware:97@3'                     => 16,
+		'runware:97@2'                     => 28,
+		'runware:z-image@0'                => 28,
+		'runware:400@1'                    => 28,
+		'runware:108@1'                    => 20,
+		'runware:97@1'                     => 50,
+		'runware:107@1'                    => 28,
 		'runware:101@1'                    => 28,
+		'runware:glm-image@0'              => 30,
 	);
 
 	/**
@@ -77,9 +119,9 @@ class PRAutoBlogger_Runware_Image_Pricing {
 	/**
 	 * Estimate USD cost for a single image at the given model.
 	 *
-	 * Runware FLUX pricing is flat per image at the model's standard step
+	 * Runware pricing is flat per image at the model's standard step count.
-	 * count. Width/height are accepted for interface compatibility but do
+	 * Width/height are accepted for interface compatibility but do not affect
-	 * not affect cost for the variants we support.
+	 * cost for the variants we support.
 	 *
 	 * @param int    $width  Width in pixels (unused for flat pricing).
 	 * @param int    $height Height in pixels (unused for flat pricing).

prautoblogger.php

@@ -9,7 +9,7 @@
  * Plugin Name:       PRAutoBlogger
  * Plugin URI:        https://peptiderepo.com/prautoblogger
  * Description:       Monitors social media for trending topics, generates SEO-friendly blog posts using AI, and publishes them on a daily schedule with full cost tracking and self-improvement metrics.
- * Version:           0.13.7
+ * Version:           0.14.0
  * Requires at least: 6.0
  * Requires PHP:      7.4
  * Author:            PeptideRepo
@@ -35,7 +35,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 | Defined here so every file in the plugin can reference paths, versions,
 | and limits without magic strings.
 */
-define( 'PRAUTOBLOGGER_VERSION', '0.13.7' );
+define( 'PRAUTOBLOGGER_VERSION', '0.14.0' );
 define( 'PRAUTOBLOGGER_DB_VERSION', '1.1.0' );
 define( 'PRAUTOBLOGGER_PLUGIN_FILE', __FILE__ );
 define( 'PRAUTOBLOGGER_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );

tests/unit/Services/ImageModelRegistryTest.php

@@ -99,4 +99,56 @@ class ImageModelRegistryTest extends BaseTestCase {
 			\PRAutoBlogger_Image_Model_Registry::provider_for( '' )
 		);
 	}
+
+	/**
+	 * Test that runware:400@4 resolves to runware provider.
+	 */
+	public function test_provider_for_runware_400_at_4(): void {
+		$this->assertSame(
+			'runware',
+			\PRAutoBlogger_Image_Model_Registry::provider_for( 'runware:400@4' )
+		);
+	}
+
+	/**
+	 * Test that runware:glm-image@0 resolves to runware provider.
+	 */
+	public function test_provider_for_runware_glm_image(): void {
+		$this->assertSame(
+			'runware',
+			\PRAutoBlogger_Image_Model_Registry::provider_for( 'runware:glm-image@0' )
+		);
+	}
+
+	/**
+	 * Test that openai/gpt-5.4-image-2 resolves to openrouter provider.
+	 */
+	public function test_provider_for_gpt_5_4_image_2(): void {
+		$this->assertSame(
+			'openrouter',
+			\PRAutoBlogger_Image_Model_Registry::provider_for( 'openai/gpt-5.4-image-2' )
+		);
+	}
+
+	/**
+	 * Test that get_models() returns 21 models.
+	 */
+	public function test_get_models_returns_21_models(): void {
+		$models = \PRAutoBlogger_Image_Model_Registry::get_models();
+		$this->assertCount( 21, $models );
+	}
+
+	/**
+	 * Test that every model has required non-empty fields.
+	 */
+	public function test_every_model_has_required_fields(): void {
+		$models = \PRAutoBlogger_Image_Model_Registry::get_models();
+		foreach ( $models as $model ) {
+			$this->assertNotEmpty( $model['id'] ?? '', 'Model missing id' );
+			$this->assertNotEmpty( $model['name'] ?? '', 'Model missing name' );
+			$this->assertNotEmpty( $model['provider'] ?? '', 'Model missing provider' );
+			$this->assertTrue( isset( $model['cost_per_image'] ), 'Model missing cost_per_image' );
+			$this->assertIsNumeric( $model['cost_per_image'], 'cost_per_image is not numeric' );
+		}
+	}
 }