OpenAI: custom temperature (#673)

Author: dankimio

lib/i18n/tasks/translators/openai_translator.rb

@@ -73,6 +73,10 @@ def model
       @model ||= @i18n_tasks.translation_config[:openai_model].presence || "gpt-4o-mini"
     end
 
+    def temperature
+      @temperature ||= @i18n_tasks.translation_config[:openai_temperature].presence || 0.0
+    end
+
     def system_prompt(to_locale)
       prompt = if locale_prompts[to_locale].present?
         locale_prompts[to_locale]
@@ -105,7 +109,7 @@ def translate(values, from, to)
         parameters: {
           model: model,
           messages: build_messages(values, from, to),
-          temperature: 0.0,
+          temperature: temperature,
           response_format: {type: "json_object"}
         }
       )

templates/config/i18n-tasks.yml

@@ -123,6 +123,7 @@ search:
 #   # OpenAI
 #   openai_api_key: "sk-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
 #   # openai_model: "gpt-4o-mini" # see https://platform.openai.com/docs/models
+#   # openai_temperature: 0.0 # Controls randomness in responses (0.0-2.0), default: 0.0
 #   # may contain `%{from}` and `%{to}`, which will be replaced by source and target locale codes, respectively (using `Kernel.format`)
 #   # openai_system_prompt: >-
 #   #   You are a professional translator that translates content from the %{from} locale