Cognition AI 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
Cognition AI
Only Cognition AI has one
Higher rating
OpenAI Codex
4.1 against 4.4
Same job?
Yes
Both are Coding tools

Side by side

Compared on	Cognition AI	OpenAI Codex
Our rating	4.1	4.4Better
Starts at	$20/mo	$20/mo
Free plan	YesBetter	No
Category	Coding	Coding
Plans	From $20/mo	From $20/mo
Key features	Autonomous planning, coding, testing, and PR creation from a single ticket Sandboxed VM execution isolated from a team's live environment Integration with existing code repositories and developer tools Agent Compute Unit-based usage pricing Deployment inside large enterprise codebases referenced publicly by the company	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	Handles full ticket-to-PR workflows, beyond inline code suggestions Backed by a funding round and valuation that signal long-term investment in the product Deployed at large, complex organizations beyond early-adopter startups	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	ACU-based pricing makes real monthly cost hard to predict in advance Independent reporting has questioned whether early demos overstated real-world reliability Best suited to well-scoped tickets rather than ambiguous, judgment-heavy work	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 AI, founded 2023	OpenAI, founded 2021

Prices come from each vendor's pricing page, last checked 20260718. Check the vendor before you buy.

FAQ

Questions people ask

Is Cognition AI better than OpenAI Codex?

In our reviews Cognition AI scores 4.1 and OpenAI Codex scores 4.4. The better pick depends on the job. Cognition AI: Cognition AI built Devin, an autonomous coding agent that plans, writes, tests, and ships code inside a sandboxed development environment. OpenAI Codex: A 2025 relaunch of a 2021 name, now a fully autonomous agent.

Which is cheaper, Cognition AI or OpenAI Codex?

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

Do Cognition AI and OpenAI Codex have free plans?

Only Cognition AI has a free plan.

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