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Aider vs Devinwhich AI code agent should you pick in 2026?

Aider

OSS terminal coding assistant — pair-programs, edits in place, commits as you go.

💻CodeSemi-autonomousOpen source
CodeTool use
Devin

Autonomous AI software engineer that ships PRs end-to-end.

💻CodeAutonomousSubscription · from $500
CodeTool useBrowserMemory

Aider vs Devin — specs

SpecAiderDevin
Agent Rank70 / 100 (B)78 / 100 (A)
AutonomySemi-autonomousAutonomous
PricingFree · OSSSubscription · from $500
Open sourceYesNo
CapabilitiesCode, Tool useCode, Tool use, Browser, Memory
Integrations2 apps3 apps
VerifiedVerifiedVerified
ReleasedJan 2025May 2025

Categories: Aider → Code · Devin → Code

Agent Rank breakdown

Aider
Agent Rank
70/ 100
BB-tier
Autonomie
8
Capacités
4
Intégrations
4
Tarification
10
Maturité
6
Vérifiabilité
10

Calculé automatiquement à partir de l'autonomie, des capacités, des intégrations, de la tarification, de la maturité et de la vérification éditoriale. Mis à jour à chaque déploiement. Comment est-ce calculé ?

Devin
Agent Rank
78/ 100
AA-tier
Autonomie
9
Capacités
8
Intégrations
6
Tarification
4
Maturité
10
Vérifiabilité
10

Calculé automatiquement à partir de l'autonomie, des capacités, des intégrations, de la tarification, de la maturité et de la vérification éditoriale. Mis à jour à chaque déploiement. Comment est-ce calculé ?

Pros & cons

Aider
Pour
  • +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
Contre
  • −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
Pour
  • +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
Contre
  • −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
Gratuit
Everyone
  • +Apache-2.0 license
  • +BYO model key (any provider)
  • +Voice mode, repo map, auto-commit
Devin
Core
$500/mois
Small teams
  • +Unlimited sessions
  • +Slack + GitHub + Linear integrations
  • +10 concurrent sessions
  • +Email support
Recommandé
Team
$1500/mois
Engineering teams
  • +Everything in Core
  • +Priority queue
  • +40 concurrent sessions
  • +SSO
  • +Shared knowledge base
Enterprise
Sur mesure
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 →
Devin

Pick Devin if you want the highest autonomy and the verification loop is in place.

Try Devin →

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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.

Readers comparing Aider and Devin also picked

Adjacent agents in the same category with overlapping capabilities — worth a side-by-side glance before you commit.

See more alternatives: alternatives to Aider · alternatives to Devin
Want the real monthly cost at your volume? Run the TCO calculator →
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Aider vs Devin (2026): which AI code agent wins? · AI Agent Rank