OpenCode · Anomaly (formerly SST)
The most-starred open-source coding agent of 2026 (~183k stars, MIT, TypeScript): a polished terminal TUI with 75+ providers, LSP feedback, Tab-switchable build/plan agents plus background subagents, SKILL.md support, and optional paid model access via OpenCode Go ($10/mo) and pay-as-you-go Zen gateway.
Identity
| Homepage | https://opencode.ai |
|---|---|
| Repository | https://github.com/anomalyco/opencode |
| License | open-source |
| Domain | coding |
| Form factor | cli · tui |
Model support
| Model-agnostic | ✓ yes |
|---|---|
| Native models | — |
| Local models | ✓ yes |
| Pricing | freemium |
Extensibility
| MCP client | ✓ yes |
|---|---|
| Agent Skills support | ✓ yes |
| Plugins / hooks | ✓ yes |
Execution & safety
| Sandboxing | unknown |
|---|---|
| Autonomy spectrum | supervised → semi-autonomous |
| Subagents | ✓ yes |
| Parallel sessions | ✓ yes |
| Context management | compaction |
Integration & evidence
| Headless / API | ✓ yes |
|---|---|
| GitHub integration | ✓ yes |
| Sources |
✓ profile last verified 2026-07-08 · benchmark figures are vendor-reported unless a source states otherwise