Open Code — Coding Agents Platform
Coding AgentsLayer 5Free open-source (MIT) + optional paid Zen serviceWhat is Open Code?
OpenCode is an open-source AI coding agent built by Anomaly that runs primarily in the terminal but is also available as an IDE extension and a beta desktop app on macOS, Windows, and Linux. Its standout feature is privacy-first design: OpenCode does not store any of your code, prompts, or context data, making it suitable for regulated environments and air-gapped workflows.
The agent supports 75+ LLM providers through the Models.dev catalog including Claude, OpenAI GPT, Google Gemini, GitHub Copilot, ChatGPT Plus/Pro accounts, and local models. It includes LSP integration for accurate code understanding, multi-session capability for running parallel agents on the same project, and shareable session links for debugging and team review.
OpenCode is fully free and open-source under MIT, with an optional paid "Zen" service for optimized models. Source is at github.com/anomalyco/opencode (147K+ stars, 6.5M monthly developers as of April 2026). It hit #1 on Hacker News on March 20, 2026, and crossed Cline + OpenHands in star velocity earlier in the year.
Key Features
- ✓Privacy-first — zero retention of code, prompts, or context data
- ✓75+ LLM providers via Models.dev (Claude, GPT, Gemini, GitHub Copilot, ChatGPT Plus/Pro, local)
- ✓Multi-session capability — run planning + build agents in parallel on the same repo
- ✓LSP-enabled code understanding across languages
- ✓Shareable session links for debugging and team review
Pros & Cons
Pros
- +Open-source under MIT — 147K+ GitHub stars, no vendor lock-in
- +Privacy-first design with zero data retention
- +75+ providers including local, GitHub Copilot, and ChatGPT Plus/Pro accounts
- +Multi-session parallel agents (build + plan modes)
- +Free with optional Zen service for optimized models
Cons
- -Terminal-first — less polished than IDE-native agents like Cursor
- -Desktop app still in beta on macOS/Windows/Linux
- -Steeper learning curve than minimalist tools like Claude Code
- -Provider availability depends on third-party API access (e.g., Anthropic OAuth restrictions)
Open Code Pricing
Free trial available
- ✓All core terminal, IDE, and desktop features
- ✓Bring your own API key for any of 75+ providers
- ✓Multi-session parallel agents
- ✓Privacy-first — zero data retention
- ✓Curated, optimized model tier
- ✓Managed inference for users who don't want to BYOK
- ✓Same privacy posture as core OSS
Common Use Cases
Terminal-first developers who want a privacy-respecting, provider-agnostic coding agent with multi-session support
- •Terminal-first AI pair programming for keyboard-driven developers
- •Privacy-sensitive or air-gapped engineering environments
- •Parallel agent workflows (planner + builder) on the same codebase
- •BYOK across many providers without changing tools
- •Debugging with shareable session traces for team review
Using Open Code with Respan
Integrate with Respan to enhance AI workflows and optimize deployments.
- ✓Seamless integration
- ✓Production infrastructure
- ✓Cost optimization
- ✓Enhanced capabilities
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Last verified: April 29, 2026