Qwen3.x reasoning models don't show thinking level switcher despite supporting thinking_budget

Description

Qwen3.7 Max (and other Qwen3.x reasoning models like Qwen3.6 Plus, Qwen3.5 Plus) support adjustable thinking depth via DashScope's thinking_budget parameter, but OpenCode's TUI never shows the thinking level switcher for any Qwen model.

Root cause — in packages/opencode/src/provider/transform.ts, the variants() function has a hardcoded exclusion at line ~702-714:

if (
    id.includes("deepseek-chat") ||
    id.includes("deepseek-reasoner") ||
    id.includes("deepseek-r1") ||
    id.includes("deepseek-v3") ||
    id.includes("minimax") ||
    (id.includes("glm") && !glm52) ||
    id.includes("kimi") ||
    id.includes("k2p") ||
    id.includes("qwen") ||        // ← blocks ALL Qwen models
    id.includes("big-pickle")
  )
    return {}

The id.includes("qwen") check is a blanket exclusion that prevents all Qwen models from exposing thinking level variants, even though:

models.dev correctly marks qwen3.7-max with reasoning: true ✅
capabilities.reasoning is correctly set to true ✅
DashScope's OpenAI-compatible API supports enable_thinking: true + thinking_budget for fine-grained control

The model passes the first gate (capabilities.reasoning === true) but is immediately blocked by the hardcoded string match, returning empty variants {} to the TUI.

Expected behavior

Qwen3.x reasoning models (3.5+, 3.6, 3.7) should expose thinking level variants similar to Google's thinkingBudget approach, e.g.:

if (id.includes("qwen3.7") || id.includes("qwen3.6") || id.includes("qwen3.5")) {
  return {
    low:  { enable_thinking: true, thinking_budget: 4096 },
    high: { enable_thinking: true, thinking_budget: 16000 },
    max:  { enable_thinking: true, thinking_budget: 32768 },
  }
}

Plugins

superpowers, oh-my-openagent

OpenCode version

1.17.9

Steps to reproduce

Configure any Alibaba/DashScope provider (e.g. alibaba-token-plan-cn) in OpenCode
Select qwen3.7-max as the model
Observe that no thinking level switcher appears in the TUI prompt area
Compare with a model like glm-5.2 or claude-opus-4.6 which correctly shows the thinking level toggle

Screenshot and/or share link

N/A

Operating System

macOS 15.5

Terminal

iTerm2

我也遇到过这个问题，可以根据百炼官方提供的文档自定义一个Provider，然后自己设置variants

"provider": {
    "bailian-payg": {
      "models": {
        "qwen3.7-max": {
          "name": "Qwen3.7 Max",
          "reasoning": true,
          "variants": {
            "low": {
              "thinking": {
                "budgetTokens": 4096,
                "type": "enabled"
              }
            },
            "medium": {
              "thinking": {
                "budgetTokens": 8192,
                "type": "enabled"
              }
            },
            "high": {
              "thinking": {
                "budgetTokens": 16384,
                "type": "enabled"
              }
            },
            "max": {
              "thinking": {
                "budgetTokens": 32768,
                "type": "enabled"
              }
            }
          }
        }
      },
      "name": "Alibaba Cloud Model Studio",
      "npm": "@ai-sdk/anthropic",
      "options": {
        "apiKey": "your-apiKey",
        "baseURL": "https://dashscope.aliyuncs.com/apps/anthropic/v1",
        "setCacheKey": true
      }
    },

当然这只是一个临时解决方案，希望opencode官方能够尽快适配:)

我也遇到过这个问题，可以根据百炼官方提供的文档自定义一个Provider，然后自己设置variants

"provider": {
"bailian-payg": {
"models": {
"qwen3.7-max": {
"name": "Qwen3.7 Max",
"reasoning": true,
"variants": {
"low": {
"thinking": {
"budgetTokens": 4096,
"type": "enabled"
}
},
"medium": {
"thinking": {
"budgetTokens": 8192,
"type": "enabled"
}
},
"high": {
"thinking": {
"budgetTokens": 16384,
"type": "enabled"
}
},
"max": {
"thinking": {
"budgetTokens": 32768,
"type": "enabled"
}
}
}
}
},
"name": "Alibaba Cloud Model Studio",
"npm": "@ai-sdk/anthropic",
"options": {
"apiKey": "your-apiKey",
"baseURL": "https://dashscope.aliyuncs.com/apps/anthropic/v1",
"setCacheKey": true
}
},
当然这只是一个临时解决方案，希望opencode官方能够尽快适配:)

Kindly please show how you have configured this? I am using a Chinese to English translator for your message. Thank you

我也遇到过这个问题，可以根据百炼官方提供的文档自定义一个Provider，然后自己设置variants
"provider": {
"bailian-payg": {
"models": {
"qwen3.7-max": {
"name": "Qwen3.7 Max",
"reasoning": true,
"variants": {
"low": {
"thinking": {
"budgetTokens": 4096,
"type": "enabled"
}
},
"medium": {
"thinking": {
"budgetTokens": 8192,
"type": "enabled"
}
},
"high": {
"thinking": {
"budgetTokens": 16384,
"type": "enabled"
}
},
"max": {
"thinking": {
"budgetTokens": 32768,
"type": "enabled"
}
}
}
}
},
"name": "Alibaba Cloud Model Studio",
"npm": "@ai-sdk/anthropic",
"options": {
"apiKey": "your-apiKey",
"baseURL": "https://dashscope.aliyuncs.com/apps/anthropic/v1",
"setCacheKey": true
}
},
当然这只是一个临时解决方案，希望opencode官方能够尽快适配:)

Kindly please show how you have configured this? I am using a Chinese to English translator for your message. Thank you

Sure, here's the full configuration. You just need to add it in your OpenCode config file.
Config file locations:

OS	Path
macOS / Linux	`~/.config/opencode/opencode.json`
Windows	`%USERPROFILE%\.config\opencode\opencode.json`

{
  "$schema": "https://opencode.ai/config.json",
  // ... your other configs
  "provider": {
    "bailian-payg": {
      "models": {
        "qwen3.7-max": {
          "name": "Qwen3.7 Max",
          "reasoning": true,
          "variants": {
            "low": { "thinking": { "budgetTokens": 4096, "type": "enabled" } },
            "medium": { "thinking": { "budgetTokens": 8192, "type": "enabled" } },
            "high": { "thinking": { "budgetTokens": 16384, "type": "enabled" } },
            "max": { "thinking": { "budgetTokens": 32768, "type": "enabled" } }
          }
        }
      },
      "name": "Alibaba Cloud Model Studio",
      "npm": "@ai-sdk/anthropic",
      "options": {
        "apiKey": "your-apiKey",
        "baseURL": "https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/apps/anthropic/v1",
        "setCacheKey": true
      }
    }
  }
}

Don't forget to replace "your-apiKey" and "baseURL" with your actual API key and baseURL before saving. The baseURL and API format might differ in different regions.
For more details, see the OpenCode Config Docs.

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Qwen3.x reasoning models don't show thinking level switcher despite supporting thinking_budget #33303

Description

Expected behavior

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OpenCode version

Steps to reproduce

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Operating System

Terminal

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Qwen3.x reasoning models don't show thinking level switcher despite supporting thinking_budget #33303

Description

Description

Expected behavior

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Operating System

Terminal

Activity

vugoqk commented on Jun 22, 2026

yapnel commented on Jun 22, 2026

vugoqk commented on Jun 22, 2026

github-actions commented on Aug 22, 2026

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