Qwen3.6 Plus Context Limit Decreased?

[Tao-Yida]

Question

During the free trail of Qwen 3.6 Plus, a context limit of 1M tokens was provided, which is the reason I chose Opencode Go, hoping to use it when the official paid access being available. But now I noticed that its context window has decreased to 260k in the new version of Opencode.
Is there any plan in future to bring back the old context window for Qwen3.6 Plus?

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• opencode/qwen3.6-plus-free has lost after 1.4.x #22146: opencode/qwen3.6-plus-free model config broke after 1.4.x, which may explain the reduced context window you're seeing
• bug: prune thresholds are too aggressive for 1M+ context models #21208: prune thresholds are too aggressive for 1M+ context models (related context window handling issue)

If your issue is specifically about the model's context window being reported incorrectly in OpenCode (rather than a Qwen API change), it likely overlaps with one of the above.

[neuroconvergent]

This seems to be an issue where the metadata on models.dev isn't setup correctly. This can be overwritten for now with a custom model config until they push the correction.

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "opencode-go": {
      "models": {
        "qwen3.6-plus": {
          "limit": {
            "context": 1000000,
            "output": 65536
          }
        }
      }
    }
  }
}

[Tao-Yida]

> This seems to be an issue where the metadata on models.dev isn't setup correctly. This can be overwritten for now with a custom model config until they push the correction.
> 
> {
>   "$schema": "https://opencode.ai/config.json",
>   "provider": {
>     "opencode-go": {
>       "models": {
>         "qwen3.6-plus": {
>           "limit": {
>             "context": 1000000,
>             "output": 65536
>           }
>         }
>       }
>     }
>   }
> }

Indeed, expliciltly declaring the context window limit bypassed the problem, which can also add some models supported by corresponding APIs but not in Opencode. Now we shall wait until further official notification.