リファクタリング、監査、移行のための OpenAI のオープンソースターミナルエージェントです。
コード実行ツール利用
Demo · hover to play
Aider vs Devinwhich AI code agent should you pick in 2026?
OSS terminal coding assistant — pair-programs, edits in place, commits as you go.
CodeTool use
Aider vs Devin — specs
| Spec | Aider | Devin |
|---|---|---|
| Agent Rank | 70 / 100 (B) | 78 / 100 (A) |
| Autonomy | Semi-autonomous | Autonomous |
| Pricing | Free · OSS | Subscription · from $500 |
| Open source | Yes | No |
| Capabilities | Code, Tool use | Code, Tool use, Browser, Memory |
| Integrations | 2 apps | 3 apps |
| Verified | Verified | Verified |
| Released | Jan 2025 | May 2025 |
Agent Rank breakdown
Aider
Agent Rank
70/ 100
- 自律性
- 8
- 機能
- 4
- 連携
- 4
- 料金
- 10
- 完成度
- 6
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Devin
Agent Rank
78/ 100
- 自律性
- 9
- 機能
- 8
- 連携
- 6
- 料金
- 4
- 完成度
- 10
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Pros & cons
Aider
メリット
- +Best-in-class pair-programming flow in the terminal
- +Repo map mode handles surprisingly large codebases
- +Provider-agnostic — bring any LLM that supports tool use
デメリット
- −No UI — pure CLI is a deal-breaker for some teams
- −Token spend at heavy use rivals a paid SaaS plan
- −Less polished autonomy than Devin or Replit Agent
Devin
メリット
- +Highest autonomy in the coding category — ships PRs end-to-end with minimal oversight
- +Iterates on failing tests until they pass; explains what it did in the PR description
- +Multi-agent UI for managing parallel sessions
デメリット
- −Pricing puts it firmly in team territory — overkill for solo founders
- −Will ship working code that's wrong for your codebase if architectural context is missing
- −Session memory weak past hour-long stretches
Pricing
Aider
Open source
無料
Everyone
- +Apache-2.0 license
- +BYO model key (any provider)
- +Voice mode, repo map, auto-commit
Devin
Core
$500/月
Small teams
- +Unlimited sessions
- +Slack + GitHub + Linear integrations
- +10 concurrent sessions
- +Email support
おすすめ
Team
$1500/月
Engineering teams
- +Everything in Core
- +Priority queue
- +40 concurrent sessions
- +SSO
- +Shared knowledge base
Enterprise
カスタム
Large orgs
- +Custom concurrency
- +Dedicated VPC option
- +SOC 2 II reports
- +Onboarding engineer
Which one should you pick?
Aider
Pick Aider if cost is the main constraint or if auditability or self-hosting matters.
Try Aider →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Aider or Devin in 2026?+
Pick Aider if cost is the main constraint or if auditability or self-hosting matters. Pick Devin if you want the highest autonomy and the verification loop is in place. Most working teams running both can use Aider for primary work and Devin for the workflows where its specific strengths matter.
What's the price difference between Aider and Devin?+
Aider starts at Free · OSS; Devin starts at Subscription · from $500. Aider is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Which is more autonomous, Aider or Devin?+
Devin is the more autonomous of the two (Autonomous vs Semi-autonomous). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.
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Adjacent agents in the same category with overlapping capabilities — worth a side-by-side glance before you commit.
IDE 内で動作するオープンソースの自律的なコーディングエージェントです。
コード実行ツール利用ブラウザ操作Demo · hover to playVS Code と JetBrains 向けのオープンソースコーディングAIエージェント — 任意のモデルを接続し、プロンプトを自由にカスタマイズできます。
コード実行ツール利用メモリDemo · hover to play
See more alternatives: alternatives to Aider · alternatives to Devin
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