Codex vs Replit

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Codex is the stronger AI pick in AI Coding Assistants: it has a visibility score of 20.9 versus 6.9 for Replit, and ranks ahead in 100% of the answers that name both.

Choose Codex if…

You want the brand AI engines rank higher (20.9 vs 6.9)
Strong for autonomous coding tasks
Frequently included in top AI coding shortlists
Enterprise-scale engineering adoption

Choose Replit if…

AI answers describe it more positively (69% vs 64% positive)
You need SOC 2 coverage
Browser-based development with no local setup needed
Replit Agent builds and deploys apps quickly from prompts

AI visibility side by side

Latest weekly run · Nov 3

Metric	Codex	Replit
Visibility score	20.9%	6.9%
Change vs last week	New	New
Rank in AI Coding Assistants	#4	#14
Share of voice	5.4%	3.3%
Mentions this run	28	16
Positive in AI answers	64%	69%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

Codex 0pp · Replit 0pp over 0 weekly runs.

Engine by engine

Codex leads on 3 of 3 engines

ChatGPT

35.6%

4.4%

AI Mode

10.4%

7.4%

Perplexity

16.9%

8.9%

CodexReplit

Head to head in AI answers

11 engine answers name both brands

11Codex ranked higher

0Replit ranked higher

Prompt	Engine	Codex	Replit
What are the best AI coding assistant tools in 2026?	AI Mode	#4	#9
What are the best AI coding assistant tools in 2026?	Perplexity	#4	#7
Best AI coding assistant for startups	ChatGPT	#4	#6
Compare the leading AI coding assistant platforms	Perplexity	#4	#13
Alternatives to the most popular AI coding assistant	Perplexity	#4	#14
Best AI coding assistant with AI features	ChatGPT	#1	#8
Best AI coding assistant with AI features	Perplexity	#4	#6
Official website of the top AI coding assistant vendors	ChatGPT	#2	#12
Official website of the top AI coding assistant vendors	AI Mode	#3	#7
Official website of the top AI coding assistant vendors	Perplexity	#2	#10
Where can I sign up for an AI coding assistant?	ChatGPT	#4	#6

Features, pricing & fit

Dimension	Codex	Replit
Pricing model	—	Flat tiers
Entry price	—	Free; paid from $20 / mo
Free plan	—	Yes
Deployment	Cloud-hosted agent, with local CLI, IDE extension and desktop app surfaces.	Hosted cloud service, with Bring Your Own Cloud and single-tenant options for enterprise customers.
Integrations	—	450+
Compliance	—	SOC 2
Support	—	In-app help via the ? icon, Premium support on the Pro plan, Dedicated premium support on the Enterprise plan
Founded	2025	2016
Headquarters	—	Foster City, California, US
Employees	—	201–500
Funding	—	Series D
Best for	Software engineers who want an AI agent to handle coding tasks such as writing code and fixing bugs.	Founders, product managers and non-programmers who want to turn ideas into apps, and commercial teams building professional apps on the Pro plan.