diff --git a/src/Services/InfoProviderSystem/DTOJsonSchemaConverter.php b/src/Services/InfoProviderSystem/DTOJsonSchemaConverter.php
index bfc41121..a61e7465 100644
--- a/src/Services/InfoProviderSystem/DTOJsonSchemaConverter.php
+++ b/src/Services/InfoProviderSystem/DTOJsonSchemaConverter.php
@@ -63,13 +63,19 @@ final class DTOJsonSchemaConverter
                             'type' => 'object',
                             'properties' => [
                                 'name' => ['type' => 'string'],
-                                'value' => ['type' => 'string'],
-                                'unit' => ['type' => ['string', 'null']],
+                                'symbol' => ['type' => ['string', 'null'], 'description' => 'An optional quantity symbol for the parameter in latex code, like R_1'],
+                                'value_typical' => ['type' => ['number', 'null'], 'description' => 'The typical value of the parameter. For example, for a resistor this could be 100 for a 100 Ohm resistor. Also used if only one numeric value is given. If used an unit should be given'],
+                                'value_min' => ['type' => ['number', 'null'], 'description' => 'If a range is given for the parameter, this is the minimum value. Null if no range is given.'],
+                                'value_max' => ['type' => ['number', 'null'], 'description' => 'If a range is given for the parameter, this is the maximum value. Null if not a range.'],
+                                'value_text' => ['type' => ['string', 'null'], 'description' => 'When a value is not numeric it can be put here as text. Only use if it does not fit in value_min, value_typical or value_max. E.g. "Yes", "Red", etc.'],
+                                'group' => ['type' => ['string', 'null'], 'description' => 'An optional group name for the parameter, e.g. "Electrical parameters", "Mechanical parameters" etc.'],
+                                'unit' => ['type' => ['string', 'null'], 'description' => 'The unit of the parameter values, e.g. kg, Ohm, V, etc.'],
                             ],
-                            'required' => ['name', 'value'],
+                            'required' => ['name', 'value_typical', 'value_min', 'value_max', 'value_text']
                         ],
                     ],
                     'datasheets' => [
+                        'description' => 'A list of datasheets, manuals, or other technical documents related to the product. Not images, but actual documents, preferably PDFs.',
                         'type' => 'array',
                         'items' => [
                             'type' => 'object',
@@ -145,13 +151,15 @@ final class DTOJsonSchemaConverter
             $parameters = [];
             foreach ($data['parameters'] as $p) {
                 if (!empty($p['name'])) {
-                    $value = $p['value'] ?? '';
-                    $unit = $p['unit'] ?? null;
-                    // Combine value and unit for parsing
-                    $valueWithUnit = $unit ? $value . ' ' . $unit : $value;
-                    $parameters[] = ParameterDTO::parseValueField(
+                    $parameters[] = new ParameterDTO(
                         name: $p['name'],
-                        value: $valueWithUnit
+                        value_text: $p['value_text'] ?? null,
+                        value_typ: isset($p['value_typical']) && is_numeric($p['value_typical']) ? (float) $p['value_typical'] : null,
+                        value_min: isset($p['value_min']) && is_numeric($p['value_min']) ? (float) $p['value_min'] : null,
+                        value_max: isset($p['value_max']) && is_numeric($p['value_max']) ? (float) $p['value_max'] : null,
+                        unit: $p['unit'] ?? null,
+                        symbol: $p['symbol'] ?? null,
+                        group: $p['group'] ?? null,
                     );
                 }
             }
diff --git a/src/Services/InfoProviderSystem/Providers/AIInfoExtractor.php b/src/Services/InfoProviderSystem/Providers/AIInfoExtractor.php
index 2032f634..379d97cc 100644
--- a/src/Services/InfoProviderSystem/Providers/AIInfoExtractor.php
+++ b/src/Services/InfoProviderSystem/Providers/AIInfoExtractor.php
@@ -217,13 +217,12 @@ Focus on the main content of the page, such as product descriptions, specificati
 
 Rules:
 - manufacturing_status: Use "active", "obsolete", "nrfnd" (not recommended for new designs), "discontinued", or null
-- parameters: Extract technical specs like voltage, current, temperature, etc.
+- parameters: Extract technical specs like voltage, current, temperature, etc. and put them into the fields according to the JSON schema. Include units if available.
 - prices: Extract pricing tiers with minimum_quantity, price, and currency code
 - URLs must be absolute (include https://...)
 - If information is not found, use null
-- Return ONLY the JSON, no explanation text
-
-For parameters, combine name, value, and unit. The unit should be separate if possible.
+- Try to avoid duplicating parameters, if the same parameter is mentioned multiple times, or if it is already used in another field.
+- Include only the 1 to 3 most relevant images, such as the main product image or important diagrams. Ignore decorative images, logos, or icons.
 PROMPT;
 
         if ($this->settings->outputLanguage === null) {