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Providers

OpenCode Zen

Use opencode/<model> with VoltAgent's model router.

Quick start​

import { Agent } from "@voltagent/core";

const agent = new Agent({
  name: "opencode-agent",
  instructions: "You are a helpful assistant",
  model: "opencode/alpha-gd4",
});

Environment variables​

  • OPENCODE_API_KEY

Provider package​

@ai-sdk/openai-compatible

This provider uses the OpenAI-compatible adapter.

Default base URL​

https://opencode.ai/zen/v1

You can override the base URL by setting OPENCODE_BASE_URL.

Provider docs​

Models​

Show models (27)
  • alpha-gd4
  • alpha-glm-4.7
  • big-pickle
  • claude-3-5-haiku
  • claude-haiku-4-5
  • claude-opus-4-1
  • claude-opus-4-5
  • claude-sonnet-4
  • claude-sonnet-4-5
  • gemini-3-flash
  • gemini-3-pro
  • glm-4.6
  • glm-4.7-free
  • gpt-5
  • gpt-5-codex
  • gpt-5-nano
  • gpt-5.1
  • gpt-5.1-codex
  • gpt-5.1-codex-max
  • gpt-5.1-codex-mini
  • gpt-5.2
  • gpt-5.2-codex
  • grok-code
  • kimi-k2
  • kimi-k2-thinking
  • minimax-m2.1-free
  • qwen3-coder

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