Side by side
PromptForge vs PromptLayer
Both stand on ai prompt generators. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose PromptForge if you need a place to test, gate, version, and deploy prompts across model providers. Its free plan includes core testing and BYOK, while teams needing more runs, collaboration controls, or enterprise features will need a higher plan.
Visit PromptForge
PromptLayer brings prompt editing, evaluation, and operational monitoring into one workflow, with collaboration features for technical and non-technical contributors. The Free plan has defined prompt and playground limits, while larger teams can consider paid plans or Enterprise hosting options.
Visit PromptLayerThe facts
| PromptForge | PromptLayer | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Self-hosted, Web |
| Lowest paid plan | Pro: $29 per user a month | Pro: $49 a month |
| Plans published | 4 | 4 |
| Maker | Not published | Not published |
| Website | app.prompt-forge.io | promptlayer.com |
| On ai prompt generators | #14 of 28 | #10 of 28 |
PromptForge: what it does well
- Tests prompts in batches against datasets.
- Supports A/B tests and scheduled regression runs.
- Release gates work in the app, APIs, and CLI.
- Visual builder combines prompts, HTTP calls, and logic.
- Tracks cost, latency, and quality signals.
What to know first
- Free plan allows 200 test runs per month.
- Free plan includes only three projects and 1 GB storage.
- Team is billed as an organization base plus seats.
- Enterprise pricing is provided through annual contracts.
PromptLayer: what it does well
- Edit and deploy prompts without an application redeploy.
- Evaluations include historical backtests and model comparisons.
- Tracks cost, latency, token use, scores, and traces.
- Enterprise supports flexible hosting options.
- Free plan includes 5 users and 2.5k monthly requests.
What to know first
- Free includes only 10 prompts and 10 daily playground runs.
- Webhooks are limited to Team and Enterprise.
- Pro costs $49 a month.
- Team costs $500 a month.
Alternatives to PromptForge Alternatives to PromptLayer The whole list