Promptfoo vs Cline
A side-by-side comparison to help you choose the right tool.
88
Promptfoo scores higher overall (88/100)
But the best choice depends on your specific needs. Compare below.
| Feature | Promptfoo | Cline |
|---|---|---|
| Our score | 88 | 81 |
| Pricing | Open-source core; free to run in your own workflows. | The Cline extension is free and open source. You pay only for the underlying model usage via your own Anthropic, OpenAI, OpenRouter, or other provider key. Cline also offers an optional managed inference plan billed per token. |
| Free plan | Yes | Yes |
| Best for | Teams serious about AI testing discipline, Developers comparing prompts and providers, Organizations building evals into release workflows | developers who already pay for Claude or OpenAI API access, engineers who want a transparent, open-source alternative to Cursor, teams that need an agent that can plan, edit files, and run commands, tinkerers who want full control over models and prompts |
| Platforms | mac, windows, linux, api | vscode, jetbrains, cli |
| API | Yes | No |
| Languages | en | en |
| Pros |
|
|
| Cons |
|
|
| Visit site | Visit site |
- Pricing
- Open-source core; free to run in your own workflows.
- Free plan
- Yes
- Best for
- Teams serious about AI testing discipline, Developers comparing prompts and providers, Organizations building evals into release workflows
- Platforms
- mac, windows, linux, api
- API
- Yes
- Languages
- en
Cline
81
- Pricing
- The Cline extension is free and open source. You pay only for the underlying model usage via your own Anthropic, OpenAI, OpenRouter, or other provider key. Cline also offers an optional managed inference plan billed per token.
- Free plan
- Yes
- Best for
- developers who already pay for Claude or OpenAI API access, engineers who want a transparent, open-source alternative to Cursor, teams that need an agent that can plan, edit files, and run commands, tinkerers who want full control over models and prompts
- Platforms
- vscode, jetbrains, cli
- API
- No
- Languages
- en
88Choose Promptfoo if:
- You are Teams serious about AI testing discipline
- You are Developers comparing prompts and providers
- You are Organizations building evals into release workflows
- You want to start free
81Choose Cline if:
- You are developers who already pay for Claude or OpenAI API access
- You are engineers who want a transparent, open-source alternative to Cursor
- You are teams that need an agent that can plan, edit files, and run commands
- You want to start free
FAQ
- What is the difference between Promptfoo and Cline?
- Promptfoo is an open-source testing and evaluation framework for prompts and models, designed to fit into ci/cd and comparison workflows. Cline is an open-source ai coding agent that runs inside vs code, jetbrains, and a cli, with bring-your-own-key inference so you only pay for the model tokens, not a subscription.
- Which is cheaper, Promptfoo or Cline?
- Promptfoo: Open-source core; free to run in your own workflows.. Cline: The Cline extension is free and open source. You pay only for the underlying model usage via your own Anthropic, OpenAI, OpenRouter, or other provider key. Cline also offers an optional managed inference plan billed per token.. Promptfoo has a free plan. Cline has a free plan.
- Who is Promptfoo best for?
- Promptfoo is best for Teams serious about AI testing discipline, Developers comparing prompts and providers, Organizations building evals into release workflows.
- Who is Cline best for?
- Cline is best for developers who already pay for Claude or OpenAI API access, engineers who want a transparent, open-source alternative to Cursor, teams that need an agent that can plan, edit files, and run commands, tinkerers who want full control over models and prompts.