Cannot set AI default LLM model even after creating available LLMs

Ondersteuning
1

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image1920×1031 152 KB

The Japanese lyrics in the bottom right corner are not my annotation, please disregard them.
The screenshot shows that my model is indeed usable, but it cannot be set as the default model.
Due to new user restrictions, a screenshot showing the model’s usability will be sent later.
I need help, thank you!

2

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The model passed the system test.

3

Here is some related log information that might be useful, which includes testing LLM availability and setting the default model.

Started POST "/admin/plugins/discourse-ai/ai-llms/test.json" for 172.68.225.73 at 2026-03-20 02:11:07 +0000
Processing by DiscourseAi::Admin::AiLlmsController#test as JSON
  Parameters: {"ai_llm"=>{"max_prompt_tokens"=>"32000", "max_output_tokens"=>"2000", "ai_secret_id"=>"2", "tokenizer"=>"DiscourseAi::Tokenizer::OpenAiTokenizer", "url"=>"https://api.chatanywhere.org", "display_name"=>"gpt-4.1", "name"=>"gpt-4.1", "provider"=>"open_ai", "vision_enabled"=>"false", "input_cost"=>"0.7", "output_cost"=>"2.8", "cached_input_cost"=>"0.7", "cache_write_cost"=>"0.7", "provider_params"=>{"organization"=>"", "disable_native_tools"=>"", "reasoning_effort"=>"none", "disable_streaming"=>"", "service_tier"=>"default"}, "allowed_attachment_types"=>["doc", "docx", "html", "markdown", "pdf", "rtf", "txt"]}}
Completed 200 OK in 252ms (Views: 0.2ms | ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 0.7ms)
Started PUT "/admin/plugins/discourse-ai/ai-llms/3" for 172.68.225.73 at 2026-03-20 02:11:10 +0000
Processing by DiscourseAi::Admin::AiLlmsController#update as */*
  Parameters: {"ai_llm"=>{"max_prompt_tokens"=>32000, "max_output_tokens"=>2000, "ai_secret_id"=>2, "tokenizer"=>"DiscourseAi::Tokenizer::OpenAiTokenizer", "url"=>"https://api.chatanywhere.org", "display_name"=>"gpt-4.1", "name"=>"gpt-4.1", "provider"=>"open_ai", "vision_enabled"=>false, "input_cost"=>0.7, "output_cost"=>2.8, "cached_input_cost"=>0.7, "cache_write_cost"=>0.7, "provider_params"=>{"organization"=>nil, "disable_native_tools"=>nil, "reasoning_effort"=>"none", "disable_streaming"=>nil, "service_tier"=>"default"}, "llm_quotas"=>[], "allowed_attachment_types"=>["doc", "docx", "html", "markdown", "pdf", "rtf", "txt"]}, "id"=>"3"}
Completed 200 OK in 61ms (Views: 14.4ms | ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 0.7ms)
Started GET "/admin/plugins/discourse-ai/ai-llms.json" for 172.68.225.73 at 2026-03-20 02:11:12 +0000
Processing by DiscourseAi::Admin::AiLlmsController#index as JSON
Completed 200 OK in 47ms (Views: 0.8ms | ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 2.2ms)
Started GET "/admin/config/site_settings.json?plugin=discourse-ai&category=discourse_ai" for 172.68.225.73 at 2026-03-20 02:11:12 +0000
Processing by Admin::Config::SiteSettingsController#index as JSON
  Parameters: {"plugin"=>"discourse-ai", "category"=>"discourse_ai"}
Completed 200 OK in 103ms (Views: 0.2ms | ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 4.9ms)
Started GET "/admin/config/site_settings.json?plugin=discourse-ai" for 172.68.225.73 at 2026-03-20 02:11:12 +0000
Processing by Admin::Config::SiteSettingsController#index as JSON
  Parameters: {"plugin"=>"discourse-ai"}
Completed 200 OK in 98ms (Views: 0.1ms | ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 0.0ms)
Started PUT "/admin/site_settings/ai_default_llm_model" for 172.68.225.73 at 2026-03-20 02:11:17 +0000
Processing by Admin::SiteSettingsController#update as */*
  Parameters: {"ai_default_llm_model"=>"3", "id"=>"ai_default_llm_model"}
Completed 422 Unprocessable Entity in 265ms (Views: 0.1ms | ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 0.0ms)
4

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Confusingly, shortly after, I clicked on “Change settings” again, and the error no longer appeared. I don’t know if this means it was successful.

Here is the server log for this operation:

Started PUT "/admin/site_settings/ai_default_llm_model" for 172.68.225.73 at 2026-03-20 02:20:19 +0000
Processing by Admin::SiteSettingsController#update as */*
  Parameters: {"ai_default_llm_model" => "3", "id" => "ai_default_llm_model"}
Completed 204 No Content in 2047ms (ActiveRecord: 0.0ms (0 queries, 0 cached) | GC: 0.5ms)