Open-source terminal agents · Checked Aug 23, 2026
Aider vs. OpenCode
Choose Aider for a focused Git-aware terminal pair programmer; choose OpenCode when the same open-source agent should extend into desktop and editor surfaces.
By Ros · No universal winner · No paid ranking · Unknown stays unknown
01 / Verified matrix
The working difference
| Criterion | Aider | OpenCode |
|---|---|---|
| Primary role | terminal-agent | terminal-agent |
| Surfaces | Terminal | Terminal, Desktop app, VS Code, Web |
| Autonomy | Interactive agent work | Interactive agent work |
| Model strategy | Cloud and local models through multiple providers | Provider-independent; cloud and local models |
| Deployment | Self-hosted | Self-hosted |
| Starting point | Free, open-source client | Free, open-source client |
| Billing basis | Free | Subscription or usage |
| Code processing | Aider runs locally and sends selected code context to the configured model provider. | The agent runs locally and calls the configured model provider directly; optional shared conversations are uploaded to OpenCode’s service. |
| Self-hosted | Yes | Yes |
| Open source | Yes | Yes |
| Lifecycle | Active | Active |
| Last verified | Aug 31, 2026 | Aug 31, 2026 |
02 / Workflow fit
Choose by constraint
Focused Git loop
AiderAider emphasizes repository maps, explicit Git checkpoints, and automatic lint-and-test loops in the terminal.
Read profile →Broader agent surfaces
OpenCodeOpenCode brings a provider-independent agent to terminal, desktop, and editor workflows.
Read profile →03 / Composition
Using both
Both can operate against ordinary repositories. Keeping both can provide a focused Git-centered fallback beside a broader agent surface, at the cost of duplicate provider and instruction setup.
04 / Switching
Migration cost
The repository and provider accounts remain portable. Compare edit review, Git checkpoint, configuration, and test-loop behavior on the same bounded task.
Focus versus surface area
Aider has a narrow, durable thesis: work in the terminal, keep Git visible, and close the loop with linting and tests. OpenCode exposes a broader agent product across terminal, desktop, and editor surfaces while retaining provider independence.
Trial design
Use the same model provider and task. Compare initial configuration, repository context selection, checkpoint quality, test recovery, and how easily another developer can inspect or reverse the result.
05 / Evidence
Primary sources
- Aider repository ↗Checked Jul 31, 2026
- Aider lint and test documentation ↗Checked Jul 31, 2026
- OpenCode documentation ↗Checked Jul 31, 2026
- OpenCode repository ↗Checked Jul 31, 2026