Devin vs OpenAI Codex (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Tie
Both start at from $20/mo
Free plan
Tie
Neither has one
Higher rating
OpenAI Codex
4.0 against 4.4
Same job?
Yes
Both are Coding tools

Side by side

Compared on	Devin	OpenAI Codex
Our rating	4.0	4.4Better
Starts at	$20/mo	$20/mo
Free plan	No	No
Category	Coding	Coding
Plans	From $20/mo	From $20/mo
Key features	Fully autonomous multi-step task planning and execution Plans, codes, tests, and debugs within one session Marketed as one of the earliest autonomous AI software engineers No free tier Continued development since its 2023 launch	Cloud-based autonomous coding agent with sandboxed execution Codex CLI for local, terminal-based agent use Runs tests and returns a pull request for completed tasks IDE, terminal, and desktop app availability Distinct 2025 relaunch under a name last used for a different 2021 product
Pros	Ambitious scope for autonomous, end-to-end task completion High public profile means substantial third-party review and discussion exists Continued active development since launch	Genuinely autonomous, sandbox-based task execution Backed by OpenAI's continued model development and rapid feature updates Available across cloud, CLI, IDE, and desktop surfaces
Cons	Original launch benchmark claims were publicly disputed by independent researchers No free tier to test before committing Current real-world performance is worth verifying against recent independent reviews rather than launch-era marketing	No free tier, requires a paid ChatGPT subscription or API access Name reuse from the original 2021 Codex can cause confusion when researching it Sandboxed cloud execution has less direct visibility than a live local session
Company	Cognition, founded 2023	OpenAI, founded 2021

Prices come from each vendor's pricing page, last checked 20260703. Check the vendor before you buy.

FAQ

Questions people ask

Is Devin better than OpenAI Codex?

In our reviews Devin scores 4.0 and OpenAI Codex scores 4.4. The better pick depends on the job. Devin: Marketed as the first AI software engineer, with disputed early claims. OpenAI Codex: A 2025 relaunch of a 2021 name, now a fully autonomous agent.

Which is cheaper, Devin or OpenAI Codex?

Both start at the same price (from $20/mo).

Do Devin and OpenAI Codex have free plans?

Neither lists a free plan.

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