SAP AI Core reasoning models missing variant cycling support (Ctrl+T)

[jerome-benoit]

SAP AI Core reasoning models (e.g., anthropic--claude-3.7-sonnet, anthropic--claude-4.5-haiku) do not support variant cycling via Ctrl+T. The variants system returns an empty object, making it impossible to switch between reasoning effort levels.

Expected behavior:

Pressing Ctrl+T should cycle through reasoning variants (high/max for Anthropic models, low/medium/high for others) like other providers.

Current behavior:

Ctrl+T does nothing - no variants are available for SAP AI Core models.

Context:

• Depends on https://github.com/anomalyco/models.dev/pull/638

OpenCode version: latest dev

Operating System: Linux