Aider vs Devin: 2026 comparison
OSS terminal coding assistant — pair-programs, edits in place, commits as you go.
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
- Autonomy fit
- 8
- Capabilities
- 4
- Integrations
- 4
- Pricing value
- 10
- Polish & maturity
- 6
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
- Autonomy fit
- 9
- Capabilities
- 8
- Integrations
- 6
- Pricing value
- 4
- Polish & maturity
- 10
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
- +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
- −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
- +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
- −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
- +Apache-2.0 license
- +BYO model key (any provider)
- +Voice mode, repo map, auto-commit
- +Unlimited sessions
- +Slack + GitHub + Linear integrations
- +10 concurrent sessions
- +Email support
- +Everything in Core
- +Priority queue
- +40 concurrent sessions
- +SSO
- +Shared knowledge base
- +Custom concurrency
- +Dedicated VPC option
- +SOC 2 II reports
- +Onboarding engineer
Which one should you pick?
Pick Aider if cost is the main constraint or if auditability or self-hosting matters.
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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.