OpenAI Codex vs Convai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. OpenAI Codex starts at $8/mo and Convai starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Cloud coding tasks
- Codex CLI
- IDE extension
- Desktop app
- Automatic PR review
- Conversational 3D characters
- Unity plugin
- Unreal Engine plugin
- Avatar Studio
- Convai Sim training scenarios
- Perception and actions
| Feature | OpenAI Codex | Convai |
|---|---|---|
| Best for | OpenAI's coding agent in the cloud, CLI, IDE and desktop app | Platform for building conversational 3D AI characters in games and XR |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | $8/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | OpenAI | Convai Technologies |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
OpenAI Codex starts at $8/mo and Convai starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
6 plans
Free
Free
- Limited Codex usage
- Via ChatGPT account
Go
$8/mo
- ChatGPT Go plan
- More Codex usage than Free
Plus
$20/mo
- ChatGPT Plus plan
- Codex in CLI, IDE and cloud
Pro
$100/mo
- Starting price; $200 and $500 tiers
- Highest Codex limits
Business
$25/mo
- Per user
- Shared workspace and admin controls
Enterprise
Contact sales
- Enterprise security
- Flexible usage
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
OpenAI Codex
- Included in ChatGPT plans
- Runs many tasks in parallel
- Open-source CLI
- Token-based limits are hard to predict
- Free tier usage is small
Convai
- Plugins for Unity and Unreal Engine
- No-code tools for non-developers
- Characters can see, hear and act
- Active developer forum and docs
- Pricing not shown in the fetched page
- Needs a 3D engine for full use
- Focused on games and XR, not general chat
Which one should you choose?
Choose OpenAI Codex if you want:
- Included in ChatGPT plans
- Runs many tasks in parallel
- Open-source CLI
Watch out: token-based limits are hard to predict.
Choose Convai if you want:
- Plugins for Unity and Unreal Engine
- No-code tools for non-developers
- Characters can see, hear and act
Watch out: pricing not shown in the fetched page.
OpenAI Codex vs Convai FAQ
What is the difference between OpenAI Codex and Convai?
OpenAI Codex: OpenAI's coding agent in the cloud, CLI, IDE and desktop app. Convai: Platform for building conversational 3D AI characters in games and XR. Both are coding tools.
Is OpenAI Codex or Convai cheaper?
OpenAI Codex starts at $8/mo and Convai starts at See pricing page. Check both pricing pages for current plans.
Do OpenAI Codex and Convai have free plans?
OpenAI Codex: Yes. Convai: Yes.
Who makes OpenAI Codex?
OpenAI Codex is made by OpenAI, based in United States.
Who makes Convai?
Convai is made by Convai Technologies, based in United States.
Which should I choose, OpenAI Codex or Convai?
Choose OpenAI Codex if you value included in chatgpt plans and runs many tasks in parallel. Choose Convai if you value plugins for unity and unreal engine and no-code tools for non-developers.