MiMo Code is now released and open-source

Original Article ↗ Hacker News Discussion ↗

What MiMo Code Is & Relationship to OpenCode

  • MiMo Code is a terminal-native coding agent built as a fork of OpenCode, keeping multi-provider support, TUI, LSP, MCP, and plugins.
  • It adds persistent project memory, context management, sub-agent orchestration, autonomous “goal loops,” workflows, and self-improvement mechanisms.
  • Some see it as “just OpenCode with extras”; others argue forking is reasonable given OpenCode’s slow PR/issue handling and the desire to move independently.

Installation, Telemetry, and Local Use

  • Official install uses curl | bash, which several posters call dangerous but note is now common (also used by other AI CLIs).
  • There’s built-in telemetry to a Xiaomi domain, enabled by default and euphemistically labeled “analysis”; it can be disabled via env vars, but update checks and model list fetching are separate toggles.
  • The harness supports Xiaomi’s APIs by default but can also talk to other or local models, inheriting OpenCode’s provider logic.

Models, Quality, and Pricing

  • MiMo v2.5 Pro is frequently praised as fast, cheap, and “Sonnet 4.6–like” in quality for coding and general tasks; some say it rivals or beats other Chinese models and is close to top Western models.
  • Others report the free tier feels noticeably weaker, closer to older-generation AI, and token streaming occasionally stalls.
  • Xiaomi’s paid API pricing is viewed as very competitive; subscription “coding plans” draw criticism for confusing credit/token math and only marginal savings vs pay-per-token.

UX, Language, and Platform Issues

  • Website defaults to Chinese, with an English toggle that doesn’t respect browser language headers and is implemented via nested iframes, breaking browser translation and causing partial translation bugs.
  • macOS binary is blocked as “damaged” due to Apple notarization; users share workarounds.
  • Some praise the CLI UX and speed; others dislike the marketing (“unlimited context”) and branding.

Open Source, Ecosystem, and Trust

  • MiMo Code is MIT-licensed but seen by some as an “open source vampire” move (fork + proprietary service + usage restrictions). Others welcome another open harness to reduce vendor lock-in.
  • Multiple comments frame Chinese open(-weight) models and tools as undercutting Western proprietary labs on price/performance.
  • A few express strong distrust due to Chinese data and intelligence laws; others note Western surveillance and corporate behavior are problematic too.