kitio.aiLangtail vs PromptGround
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Langtail starts at $99/mo and PromptGround starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Prompt versioning
- Prompt testing
- Logs
- Deployment
- Radars and alerts
- Shareable apps
- Prompt version tracking
- Live prompt editor
- One API key for many models
- Python and JavaScript SDKs
- Run logs and spend tracking
- Prompt variables
| Feature | Langtail | PromptGround |
|---|---|---|
| Best for | Prompt management and testing for product teams | Prompt versioning, testing and one API key for many models |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $99/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Langtail | PromptGround |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Langtail starts at $99/mo and PromptGround starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Unlimited users
- 2 prompts or assistants
- 1,000 logs per month
- 30 days data retention
Pro
$99/mo
- 1 user
- 20 prompts or assistants
- Unlimited logs
- 90 days data retention
Team
$499/mo
- 10 users
- Unlimited prompts or assistants
- Radars and alerts
- Dedicated support
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Langtail
- Free plan with unlimited users
- Combines testing and logging
- Version control for prompts
- Free plan allows only 2 prompts
- Team plan costs $499 a month
- Prices exclude VAT
PromptGround
- One key covers several model providers
- Free team members and unlimited projects
- Per-run logs show token use and cost
- Paid plan prices are not shown on the homepage
- Only Python and JavaScript SDKs are listed
- Free tier is a one-time token allowance
Which one should you choose?
Choose Langtail if you want:
- Free plan with unlimited users
- Combines testing and logging
- Version control for prompts
Watch out: free plan allows only 2 prompts.
Choose PromptGround if you want:
- One key covers several model providers
- Free team members and unlimited projects
- Per-run logs show token use and cost
Watch out: paid plan prices are not shown on the homepage.
Langtail vs PromptGround FAQ
What is the difference between Langtail and PromptGround?
Langtail: Prompt management and testing for product teams. PromptGround: Prompt versioning, testing and one API key for many models. Both are models & apis tools.
Is Langtail or PromptGround cheaper?
Langtail starts at $99/mo and PromptGround starts at See pricing page. Check both pricing pages for current plans.
Do Langtail and PromptGround have free plans?
Langtail: Yes. PromptGround: Yes.
Who makes Langtail?
Langtail is made by Langtail.
Who makes PromptGround?
PromptGround is made by PromptGround.
Which should I choose, Langtail or PromptGround?
Choose Langtail if you value free plan with unlimited users and combines testing and logging. Choose PromptGround if you value one key covers several model providers and free team members and unlimited projects.