Codex CLI vs Devin: 2026 comparison
OpenAI’s open-source terminal agent for refactors, audits and migrations.
Codex CLI vs Devin — specs
| Spec | Codex CLI | Devin |
|---|---|---|
| Agent Rank | 68 / 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 | Apr 2025 | May 2025 |
Agent Rank breakdown
- Autonomy fit
- 8
- Capabilities
- 4
- Integrations
- 4
- Pricing value
- 10
- Polish & maturity
- 5
- 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
- +Zero-install terminal workflow — agent where engineers already live
- +Open source under permissive license; auditable end-to-end
- +Ideal for one-shot refactors, audits, and migrations
- −No long-running session UI; not built for hour-long autonomous work
- −Less polished than IDE-native alternatives
- −You wire the model key + handle rate limits
- +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 binary
- +BYO OpenAI / Anthropic key
- +Composable from Makefiles + scripts
- +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 Codex CLI if cost is the main constraint or if auditability or self-hosting matters.
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Frequently asked
Should I pick Codex CLI or Devin in 2026?+
Pick Codex CLI 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 Codex CLI for primary work and Devin for the workflows where its specific strengths matter.
What's the price difference between Codex CLI and Devin?+
Codex CLI starts at Free · OSS; Devin starts at Subscription · from $500. Codex CLI 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, Codex CLI 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.