OpenCode

What it is

Open-source terminal and desktop coding agent with built-in build/plan agents (repo moved from sst/opencode to anomalyco/opencode).

GitHub repo ↗ · opencode.ai ↗ · @opencode ↗

Use-case posts tagged possible_campaign came in a cluster of near-identical StepFun Step 5 Preview launch posts on 2026-10-08/09.

Install

• curl -fsSL https://opencode.ai/install | bash
• npm i -g @opencode/cli@latest
• brew install anomalyco/tap/opencode
• scoop/choco install opencode
• brew install --cask opencode-desktop

raw.githubusercontent.com/anomalyco/opencode/HEAD/README.md ↗ · checked Oct 16, 2026

Models

Many providers; OpenCode Go offers curated models such as Kimi K3, Kimi K2.7 Code, GLM-5.3-Flash, DeepSeek V4.1 Flash, Qwen3.7 Plus, MiniMax M3, Claude Haiku 5.5, GPT 6 Luna.

opencode.ai/go ↗ · checked Oct 16, 2026

Cost

Free (MIT) with BYO keys. OpenCode Go costs $10/month; Go Plus costs $40/month with higher limits.

opencode.ai/go ↗ · checked Oct 16, 2026

Features

• Two built-in agents switchable with Tab raw.githubusercontent.com/anomalyco/opencode/HEAD/README.md ↗
• Desktop app as well as TUI raw.githubusercontent.com/anomalyco/opencode/HEAD/README.md ↗

Use cases

2 posts flagged as a possible coordinated campaign (hidden by default)

Argona@Argona0x

Built a free Adobe Acrobat alternative (merge, sign, redact PDFs) from one message to Step 5 Preview in 67 min

Ziwen@ziwenxu_

Built a 3D landing page with ~9,000 cursor-chasing particles on OpenCode's free week

Complaints and issues

• "paid for the $10/month @opencode Go sub & tried Qwen 3.8 Max, burnt up my 5 hr limit & 40% of weekly usage in just 30 min" ↗@tphuang · Sep 26, 2026
• A workspace UI change with "basically no info on why the ui changed" ↗@xammen_ · Sep 24, 2026
• "OpenCode is one huge bug. If not for the OpenCode Go subscription, it would already be in my garbage bin." ↗@burkov · Sep 22, 2026
• "why is there insufficient quota ? My 5 hour limit is still at 3%" ↗@bxnjxmin27 · Sep 19, 2026
• "slow, stuck, stop the answer in the middle" (with a specific model) ↗@AlonLaleza30319 · Sep 16, 2026
• Asks to revert silent removal of Go privacy wording and provider attribution (60 reactions) ↗Jul 31, 2026 · GitHub issue
• Users want the legacy layout kept (82 reactions) ↗Jul 15, 2026 · GitHub issue
• GPT-5.6 Luna returns model not found with ChatGPT OAuth (109 reactions) ↗Jul 9, 2026 · GitHub issue

FAQ