Muse Spark 1.2

Meta Muse Spark 1.2 free coding agent model via OpenCode Zen with $0/M tokens promotion.

Updated 8/31/20262 code examples

About the Model

Why Choose Muse Spark 1.2?

Muse Spark 1.2 is Meta's specialized lightweight coding model optimized for Agent workflows, AST code transformations, and IDE completions.

How to Access for Free (via OpenCode Zen)

限时免费试用说明

OpenCode Zen 为注册开发者提供 Pay-as-you-go 网关服务。账户完成首次充值激活后，即可免费调用 Nemotron、Big Pickle 等限时免费模型。充值金额保留在个人账户余额中，可用于其他付费模型消耗。

账户激活注意事项

OpenCode Zen 网关要求账户必须完成一次首充充值激活后，方可免费调用 Nemotron、Big Pickle 等限时免费模型。充值金额保留在个人账户余额中，可用于其他付费模型消耗。

📖View Full Guide

Try it in your browser

Pick a model, paste your own free key, and run. Your key is sent once to call the provider and never stored on our servers.

Code Examples

curl https://opencode.ai/zen/v1/chat/completions \
  -H "Authorization: Bearer $OPENCODE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "muse-spark-1.2-free",
    "messages": [{"role": "user", "content": "Write a TypeScript function to debounce an async callback."}]
  }'

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