Kimi K2.5 model ID 'k2p5' bypasses reasoning variants exclusion #11917

Problem

The Kimi For Coding provider uses k2p5 as the model ID for Kimi K2.5, which does not contain the string "kimi". This causes it to bypass the exclusion logic in transform.ts and incorrectly receive high/max thinking variants support.

Confirmed with Moonshot official staff: Kimi-K2.5 does NOT support thinking budget configuration.

Current behavior

In packages/opencode/src/provider/transform.ts, the variants() function excludes models containing "kimi" from generating thinking variants:

if (
  id.includes("deepseek") ||
  id.includes("minimax") ||
  id.includes("glm") ||
  id.includes("mistral") ||
  id.includes("kimi")
)
  return {}

However, the Kimi For Coding provider in models.dev uses k2p5 as the model ID:

"kimi-for-coding": {
  "npm": "@ai-sdk/anthropic",
  "models": {
    "k2p5": {
      "id": "k2p5",
      "name": "Kimi K2.5",
      ...
    }
  }
}

Since k2p5 does not contain "kimi", it bypasses the exclusion and incorrectly gets high/max variants.

Expected behavior

Kimi K2.5 should not have high/max thinking variants, consistent with other Kimi models.

Root cause

The model ID in models.dev data should use kimi-k2.5 instead of k2p5 for consistency.

Suggested fix

The correct solution is to fix the model ID in models.dev data to use kimi-k2.5 instead of k2p5.

A temporary workaround has been added to exclude k2p5 explicitly, but this should be removed once the upstream data is corrected.