Aider vs OpenCode: Side-by-Side Comparison 2026

Aider vs OpenCode comparison for 2026. Features, pricing, AI capabilities, and editor support analyzed side by side to help you choose the right coding tool for your workflow.

Aider is a CLI-based coding agent from Paul Gauthier (Open Source) — ai pair programming in your terminal. OpenCode is a CLI-based coding agent from SST — open-source terminal ai coding agent.

Aider

Open-source CLI tool for AI pair programming. Works with OpenAI, Claude, and other models to edit code in your local git repo.

  • ✓ Git-aware editing
  • ✓ Multi-file editing
  • ✓ Model agnostic
  • ✓ Voice coding
  • ✓ Image support

Free · 1 plan

OpenCode

Open-source terminal AI coding agent from SST. Free with BYOK, or use Go ($10/mo for curated open-source models), Zen (pay-per-token), or Black (flat-rate subscription at $20/$100/$200/mo, currently paused) for managed model access.

  • ✓ AI chat
  • ✓ Agentic mode
  • ✓ Multi-file editing
  • ✓ Terminal commands
  • ✓ Test generation

Free / $10/mo · 4 plans

Feature Aider OpenCode
Category CLICLI
Starting Price Free Free
Model Family Multi-model (any)Multi-model (any)
Voice Input ✓ —
Open Source Yes (Apache 2.0)Yes (MIT)

Pricing verified May 4, 2026. Aider pricing | OpenCode pricing

Share

Key Differences

  • Starting price: Aider starts at free / BYOK; OpenCode starts at $10/mo.
  • Open source: Aider: Yes (Apache 2.0). OpenCode: Yes (MIT).
  • Provider: Aider is built by Paul Gauthier (Open Source); OpenCode is built by SST.
  • Capabilities: Aider has voice input.

Which Should You Choose?

Choose Aider if you want a fully open-source tool with transparent development. Choose OpenCode if you want open-source terminal-based coding with model flexibility. Read our full reviews to see which fits your workflow.

Share