opencode: what’s new in v1.19.4 and our verdict

Our verdict

Update when convenient for the runtime security fixes; pick opencode if you want an open-source agent that is not tied to one model vendor.

Tested. Tested 2026-10-25 (America/Chicago). Installed opencode-ai 1.19.4 from npm and ran "opencode run" headless with a custom OpenAI-compatible provider pointing at a local Ollama model. Task: change return a-b to a+b in calc.py. Attempt 1 called the edit tool on the wrong path (src/calc.py) and failed; attempt 2, with the path stated, edited calc.py and showed the diff. Not tested: the README's v2 installer or @opencode/cli 2.x package, the desktop app, or the Bun security fixes. Test environment: Linux x86_64 box with 8 CPUs and no GPU, no vendor account or API key. Agent tools were pointed at a local open-weight model (Qwen2.5-3B-Instruct, 4-bit, served by Ollama 0.40.11), so we tested the tool, not any vendor's hosted models. Full log: /tests/opencode.

Full test log with exact commands, versions and raw output: opencode 1.19.4: our test log.

Evidence

Tested (smoke test, 2026-10-25, local Qwen2.5-3B-Instruct, not vendor models). A smoke test is not a benchmark.

What we ran

Installed opencode-ai 1.19.4 from npm and ran 'opencode run' headless with a custom OpenAI-compatible provider pointing at a local model; attempt 1 edited the wrong path and failed, attempt 2 with the path stated edited calc.py.

Model used

Qwen2.5-3B-Instruct (4-bit), a small local open-weight model served by Ollama 0.40.11; no vendor-hosted model was used

Environment

Linux x86_64 box, 8 CPUs, no GPU; no vendor account, login or API key

Not tested

The README's v2 installer or @opencode/cli 2.x, the desktop app, the Bun security fixes.

Date

Oct 25, 2026 (America/Chicago)

Best for

• Best AI tool for AI coding agents: Open-source (MIT) coding agent with a large community; the latest release is a security-flavored runtime bump.

What’s new

opencode v1.19.4 is a small maintenance release: it upgrades the bundled Bun runtime to 1.4.4, which the release notes say includes security fixes. The project itself is very active and widely starred.

• v1.19.4 (Oct 22): Upgraded the bundled Bun runtime to 1.4.4, which the notes say includes security fixes for Brotli, TLS, HTTP/1.1, HTTP/2, HTTP/3, WebSocket and fetch, and updates root certificates (NSS 3.131.1).
• The README lists several install routes: an install script, npm, Homebrew, and a desktop app cask.

How to set it up: Install opencode and start it in a repo

Install steps come from the vendor's docs. We ran the install and a short real task on 2026-10-25; see the test notes above for what was and was not covered.

1. Install it

   The README recommends the install script, and also lists npm and Homebrew. Check the README for the current command before running a script from the internet.

   curl -fsSL https://opencode.ai/v2/install | bash

2. Or use a package manager

   Homebrew on macOS and Linux, or npm globally.

   brew install anomalyco/tap/opencode-v2
   # or
   npm i -g @opencode/cli@latest

3. Run it in your project

   Open a terminal in your project folder and start the agent, then connect a model provider when prompted.

   cd your-project
   opencode

Pros and cons

Alternatives and comparisons

• Claude Code: Anthropic's agentic coding tool for your terminal, IDE and GitHub.
• Cline: Open-source coding agent as an IDE extension, a CLI and an SDK.
• goose: Open-source, extensible AI agent that installs, runs, edits and tests code with the LLM of your choice.
• Amazon Q Developer: AWS's AI coding assistant for IDEs and the CLI, with a free tier and a $19 Pro tier; IDE plugin support ends April 30, 2027.

See all alternatives to opencode

• goose vs opencode: which should you use?

FAQ

What we have not verified

• Pricing for any hosted opencode services
• Real-world quality versus other agents (not tested)
• The full feature list of the v2 CLI (README only skimmed)
• The v2 CLI install routes and desktop app (not tested; we ran opencode-ai 1.19.4 from npm)

Sources

• opencode v1.19.4 release (fetched 2026-10-25)
• opencode README (fetched 2026-10-25)

Last verified Oct 25, 2026 · Agentic Weekly

Part of the week of Oct 19, 2026 archive.

Guides for opencode

• Best model for OpenCode, Cline and Claude Code: options by budget (Reported (not run by us): prices and setup from vendor docs; our tool tests do not measure model quality; last verified Oct 26, 2026)
• Which coding agents can use GPT-6.1 Terra? (Reported (not run by us): from vendor docs and changelogs; last verified Oct 26, 2026)

Latest news about opencode

• Superset is now Paradev: parallel coding-agent app ships desktop v2.0.0 and an $11.5M seed (Reported; first seen 2026-10-26 17:05 UTC)

Related tools

• Amazon Q Developer: AWS's AI coding assistant for IDEs and the CLI, with a free tier and a $19 Pro tier; IDE plugin support ends April 30, 2027.
• Augment Code: Coding agent and 'Cosmos' platform with a Context Engine, CLI and cloud agents; plans are flat team prices with usage included.
• Devin: Cognition's autonomous software engineer: a cloud coding agent that tests in its own browser and aims to hand back a mergeable pull request.