Agentic harness comparison
Aider vs Goose
Compared on where each one runs, which editors it supports, how autonomous it is, and how it bills — the four things that actually decide Aider vs Goose. Rankings reflect fit and trade-offs, not a single universal winner; partner links, when present, do not replace that methodology.
Details last verified October 2, 2026
Aider
Aider
Terminal and optional local browser UI · Hybrid
Block
Goose
CLI + desktop + embedding API · Agentic
| Specification | Aider | Goose |
|---|---|---|
| Vendor | ||
| Vendor | Aider | Block |
| Runs in | ||
| Runs in | Terminal and optional local browser UI | CLI + desktop + embedding API |
| Editor support | ||
| Editor support | Any (editor-agnostic) | Any terminal, Goose Desktop |
| Autonomy | ||
| Autonomy | Hybrid | Agentic |
| Pricing model | ||
| Pricing model | Usage-based | Usage-based |
| Requires changing editor | ||
| Requires changing editor | No | No |
| Publisher-reported SWE-bench Verified (Architect Mode, Claude Sonnet 4.5) · source date 2026-04-19 | ||
| Publisher-reported SWE-bench Verified (Architect Mode, Claude Sonnet 4.5) · source date 2026-04-19 | 31.4% | Not verifiedUnverified |
Dates refer to the linked source’s publication or capture unless it explicitly states when the benchmark was measured. Values we could not confirm are shown as “Not verified” rather than estimated.
Benchmark receipts
- Aider · Publisher-reported SWE-bench Verified (Architect Mode, Claude Sonnet 4.5): source
Aider
Apache-2.0 pair-programming client that works beside your editor, with cloud or local models and optional browser UI. Git integration creates commits by default; review-first users can disable its own automatic commits and pre-edit dirty-file commits separately.
Best for
- Terminal-first developers
- Open-source tooling
- Git-native edit and review workflows
Watch out
Aider is free; hosted model inference follows the selected provider's pricing and local inference has hardware costs. Use both --no-auto-commits and --no-dirty-commits to prevent its automatic commit paths; those flags do not make file edits read-only. Pre-commit hooks are skipped unless --git-commit-verify is enabled (https://aider.chat/docs/git.html; https://aider.chat/docs/config/options.html). The official GitHub latest-release API identifies v0.86.0 published August 9, 2025; newer main/HISTORY changes are not a newer published release. Verify current model aliases and compatibility for the installed release rather than treating dated example models as a current recommendation (https://api.github.com/repos/Aider-AI/aider/releases/latest; https://github.com/Aider-AI/aider). Repository-map symbols and selected code are sent to the configured model provider; local inference changes that boundary. Optional analytics requires consent and excludes code, chat, keys and personal information, but upstream training/retention terms still apply (https://aider.chat/docs/repomap.html; https://aider.chat/docs/more/analytics.html). The retained 31.4% Architect/Sonnet 4.5 score is an April publisher compilation, not independently reproduced or a current-product measurement.
Goose
Originally built at Block and donated to the Linux Foundation's Agentic AI Foundation, Goose is an Apache-2.0 agent with CLI, native desktop and embedding API surfaces, using chosen model providers and MCP extensions.
Best for
- Open-source agent pilots
- Hosted or local-model experiments
- Teams reviewing MCP extensions and permission modes
Watch out
Current upstream is aaif-goose/goose and docs are at goose-docs.ai. Installation is free; hosted inference and local infrastructure cost separately. Autonomous mode is the default and can edit/delete/run tools without approval. Explicitly configure approve or chat mode before a first restricted task; smart approval classifies risk and is not a hard read-only guarantee. The permissions page describes Manual Approval as all-tool confirmation but separately says only LLM-classified write tools prompt, so do not promise every read/tool always asks. Config is YAML; secrets use the system keyring when available, or plaintext secrets.yaml on file-based fallback, with provider environment variables taking precedence. Anonymous metrics are opt-in/default false and exclude conversation, code, tool arguments, error messages and personal data; this does not constrain model-provider retention. Native Windows installation is documented, with WSL optional. Current vendor model recommendations can lag new releases; verify tool support on the exact provider/runtime instead of claiming a newest-model ranking. Sources: https://goose-docs.ai/blog/2026/04/07/goose-moves-to-aaif; https://goose-docs.ai/docs/guides/goose-permissions/; https://goose-docs.ai/docs/guides/config-files/; https://goose-docs.ai/docs/guides/usage-data/.
Common questions
Aider vs Goose
Answered from the verified figures on this page rather than general guidance.
Do I have to change editor to use Aider or Goose?
How are Aider and Goose priced?
Is Aider or Goose better for large refactors?
Should I run Aider and Goose together?
Will my project rules transfer between Aider and Goose?
Can I run Aider without git?
Do coding agents replace code review?
Should we harden MCP before rolling out a coding agent?
Is a “free” open-source agent actually free to run?
Does Goose include hosted model inference?
Next step
Which one fits
Autonomy and editor constraints decide this far more reliably than a benchmark score.
If most of your week is small, frequent edits, an assistive workflow beats delegation and an agentic harness sits idle while billing. If you regularly hand over work spanning many files, the reverse is true.
Where one tool requires changing editor and the other does not, that difference usually outweighs any capability gap across a team — rollouts fail on adoption, not capability.
“Open vendor” links use a first-party redirect for click counting. They are not commissionable partner placements unless a programme is active for that vendor. Affiliate disclosure.