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Direct models must use Sonnet / Opus / Haiku model names recognized by Claude Desktop for Claude Code

Quick fix

This is an unresolved feature request: direct-connection validation does not allow the mythos- prefix, with no verified solution provided.

Error output
直连模型必须使用 Claude Desktop 可识别的 Sonnet / Opus / Haiku 模型名
English translation

Direct models must use Sonnet / Opus / Haiku model names recognized by Claude Desktop.

This is a feature request, not a confirmed fixed issue. Issue #7197 reports that, when adding `claude-mythos-5` or `claude-mythos-5-1` to a Claude Desktop direct provider (Direct Mode), front-end validation prevents saving.

The original post states that the current allowed-prefix list contains only `sonnet-`, `opus-`, `haiku-`, and `fable-`, and proposes adding `mythos-`. The request remains open, with no maintainer-confirmed fix, merge status, or verified user-side workaround.

  1. The original post does not provide a verified solution. If you need to use `claude-mythos-*`, follow Issue #7197 for maintainer-confirmed support or a released fix.

ToolClaude Code
VersionUnknown
PlatformsUnknown

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