Junie provides error "code 400: Value [model] is not supported. List of supported values:"

Problem

You received an error in your IDE that states:

LLM returned error response:Exception during request to https://api.jetbrains.ai/user/v5/1Im/chat/stream/v7 with code 400: Exception during request to https://all.agg.llm.prod.ai.prod-eu-west-1.eks.intellij.net/service/v5/chat/stream/v7 with code 400: Value anthropic-claude-3.7-sonnet is not supported. List of supported values: [openai-chat-gpt, openai-gpt-4, openai-gpt-4-turbo, openai-gpt-4o, openai-gpt-4o-mini, openai-o1, openai-03-mini, openai-03, openai-o4-mini, openai-gpt41, openai-gpt4.1-mini, openai-gpt4.1-nano, openai-gpt-5, openai-gpt-5-mini, openai-gpt-5-nano, openai-gpt-5-codex, openai-gpt-5-1, openai-gpt-5-1-codex, openai-gpt-5-1-codex-mini, openai-gpt-5-1-codex-max, openai-gpt-5-2, openai-gpt-5-2-codex, openai-gpt-5-3-codex, openai-gpt-5-4, openai-gpt-5-4-mini, openai-gpt-5-4-nano, openai-instruct-gpt, openai-embedding-ada, openai-embedding-small, openai-embedding-large, gpt-4o, gpt-4-1106-preview, anthropic-claude-4-sonnet, anthropic-claude-4.1-opus, anthropic-claude-4-5-sonnet, anthropic-claude-4-5-haiku, anthropic-claude-4-5-opus, anthropic-claude-4-6-opus, anthropic-claude-4-6-sonnet, google-chat-gemini-flash-2.0, google-chat-gemini-flash-lite-2.0, google-chat-gemini-pro-2.5, google-chat-gemini-flash-2.5, google-chat-gemini-flash-lite-2.5, google-gemini-3-0-pro, google-gemini-3-1-flash-lite, google-gemini-3-0-flash, google-gemini-3-1-pro, xai-grok-4, xai-grok-4-fast, xai-grok-code-fast-1, xai-grok-4-1-fast, xai-grok-4-1-fast-non-reasoning]

Cause [Optional]

This issue occurs because both Junie and the IDE that you are using are outdated. These versions are referencing an unsupported model (e.g., anthropic-claude-3.7-sonnet) instead of updated supported models from the list provided.

Resolution

To resolve this issue, ensure that both Junie and your IDE are updated to their latest versions. After updating, the problem should no longer occur.