Comparison · under IB-CODE-2026.2
Aider vs Claude Code
| Aider | Claude Code | |
|---|---|---|
| Vendor | Paul Gauthier (OSS, Apache 2.0) | Anthropic |
| Pricing | Free OSS + API tokens; $30-60/mo typical at moderate use with Sonnet 4.6 | Claude Pro $20/mo; Max $100/mo (5x) or $200/mo (20x); API at $3 / $15 per Mtok (Sonnet 4.6 in/out) |
| Default model | Model-agnostic; community default claude-sonnet-4-6 or GPT-5.5; 100+ providers | claude-sonnet-4-6 (Opus 4.6 on flagship tasks) |
| CLI surface | ✓ | ✓ |
| Eval status | queued | published · read |
One side evaluated, one side pending
Claude Code has been evaluated under IB-CODE-2026.2: read the Claude Code evaluation →
The other side (Aider) is currently queued . When that eval lands, this page will update to a full head-to-head comparison.
About each tool
Aider
Aider is the reference implementation of BYOK CLI coding agents. Deepest git integration in the category: auto-commit per change, smart context windows from the repo map, reproducible CI runs. Pip-installable, model-agnostic, no telemetry. Star growth has slowed as OpenCode picks up community attent…
Claude Code
Claude Code is Anthropic's agentic coding CLI, GA as of early 2026. Ranked #1 most-loved in the Pragmatic Engineer dev survey (Feb 2026, 15K respondents). Default model is Sonnet 4.6 with Opus 4.6 routing on flagship tasks. The eval anchor for Indie Bench because it's the tool being operated to run …