Qwen3.8 27B Xploded in OpenCode

Qwen3.8 27B Xploded in OpenCode

Run qwen3.8-27b-xploded in OpenCode through MagmaRouter: one key, a hard spend cap, and a model that answers instead of refusing.

Model idqwen3.8-27b-xploded
Context window1,048,576 tokens (1M)
Tool callingSupported
Price per 1M tokens$1.50 input, $0.50 on a cache hit, $5.00 output
Intelligence34 on the Artificial Analysis Intelligence Index v4.3.2, for the base model
Web searchAdd :online to the id

Set it up

  1. Add a magmarouter provider to opencode.json with this model and its limits.
  2. Export MAGMAROUTER_API_KEY in the shell OpenCode starts from.
  3. Run opencode and pick magmarouter/qwen3.8-27b-xploded with /models.
{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "magmarouter": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "MagmaRouter",
      "options": {
        "baseURL": "https://api.magmarouter.com/v1",
        "apiKey": "{env:MAGMAROUTER_API_KEY}"
      },
      "models": {
        "qwen3.8-27b-xploded": {
          "name": "Qwen3.8 27B Xploded",
          "limit": { "context": 1048576, "output": 32768 }
        }
      }
    }
  },
  "model": "magmarouter/qwen3.8-27b-xploded",
  "small_model": "magmarouter/qwen3.8-27b-xploded"
}
OpenCode with Qwen3.8 27B Xploded OpenCode plans its context from limit.context. Leave it at 1,048,576 or it compacts the session long before the model would have needed it.

What a session costs

For a 25-turn agent task (about 750K input tokens re-read across turns, 85% of them cache hits, 25K output), Qwen3.8 27B Xploded comes to about $0.61 at today's prices; the cache price does most of the work, since re-read context is billed at $0.50 rather than $1.50 per million.

FAQ

Can Qwen3.8 27B Xploded edit files and run commands in OpenCode?

Yes. OpenCode acts through tool calls and this model supports tool calling, so it can read, edit and run, not just chat.

What does a session cost?

About $0.61 for a 25-turn agent task (about 750K input tokens re-read across turns, 85% of them cache hits, 25K output), at $1.50 in, $5.00 out and $0.50 per million on cache hits. Put a spend cap on the key so a long run cannot overrun it.

Is it uncensored?

A small, cheap uncensored Qwen with half a million tokens of context and tool calling. The budget pick for agents.

The other model in OpenCode