kitio.aiOpenAI Codex vs Cosine
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. OpenAI Codex has the lower starting price: about $8 a month, against $19 for Cosine.
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
- Ticket-to-PR agent
- Cosine CLI
- Desktop app
- Jira and Linear integration
- Model choice per task
| Feature | OpenAI Codex | Cosine |
|---|---|---|
| Best for | OpenAI's coding agent in the cloud, CLI, IDE and desktop app | AI software engineer for tickets, with CLI, desktop and cloud |
| Category | Coding | Coding |
| Pricing model | Freemium | Paid |
| Starting price | $8/mo | $19/mo |
| Free plan | Yes | No |
| Made by | OpenAI | Cosine |
| Based in | United States | United Kingdom |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Both offer: Desktop app.
Pricing compared
OpenAI Codex has the lower starting price: about $8 a month, against $19 for Cosine.
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
4 plans
Starter
$19/mo
- 4M credits / month
- $6.50 per 1M extra credits
- For solo developers
Team
$199/mo
- 47M credits / month
- $5.00 per 1M extra credits
- For growing teams
Enterprise
$999/mo
- 240M credits / month
- $4.50 per 1M extra credits
- For regulated industries
Custom
Contact sales
- Tailored enterprise solution
- Private deployment options
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
Cosine
- No per-user seat fees
- Good fit for bug backlogs
- Private deployment option
- No free plan
- Team plans are expensive
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 Cosine if you want:
- No per-user seat fees
- Good fit for bug backlogs
- Private deployment option
Watch out: no free plan.
OpenAI Codex vs Cosine FAQ
What is the difference between OpenAI Codex and Cosine?
OpenAI Codex: OpenAI's coding agent in the cloud, CLI, IDE and desktop app. Cosine: AI software engineer for tickets, with CLI, desktop and cloud. Both are coding tools.
Is OpenAI Codex or Cosine cheaper?
OpenAI Codex has the lower starting price: about $8 a month, against $19 for Cosine.
Do OpenAI Codex and Cosine have free plans?
OpenAI Codex: Yes. Cosine: No.
Who makes OpenAI Codex?
OpenAI Codex is made by OpenAI, based in United States.
Who makes Cosine?
Cosine is made by Cosine, based in United Kingdom.
Which should I choose, OpenAI Codex or Cosine?
Choose OpenAI Codex if you value included in chatgpt plans and runs many tasks in parallel. Choose Cosine if you value no per-user seat fees and good fit for bug backlogs.