Agenta vs Prompt Engine
Agenta
agenta.aiPrompt Engine
promptengine.meSide by side
| Figure | Agenta | Prompt Engine |
|---|---|---|
| Price from | $29/mo | $4.99/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 8 | 3 |
| Spec score · AI Prompt Generators | 9.3 (#1) | 8.0 (#10) |
| Support | The Hobby and Pro plans list community support through GitHub Issues, while Business lists priority support and a private Slack Connect channel. | The support guide offers documentation, video tutorials, a blog, and email support. |
Plans
Agenta
- HobbyFree
- Open sourceFree
- Pro$29 a month
- Business$299 a month
- EnterprisePriced on request
- Enterprise (Cloud)Priced on request
- Enterprise (self-hosted)Priced on request
- Enterprise self-hostedPriced on request
In their own words
Agenta
Agenta is an open-source workspace for teams building and automating AI coworkers. Teams can interact with agents in Slack or Telegram, start from templates for engineering, customer support, sales, company knowledge, and operations, and run them on a schedule or in response to events. Its observability tools include traces, logs, errors, version history, evaluations, and token usage with estimated model costs. Agenta connects with services such as Slack, Notion, GitHub, HubSpot, Google Drive, Linear, Zendesk, and Discord, and supports more than 1,000 integrations. Listed model providers include OpenAI, Anthropic, Gemini, Mistral, and others. Cloud Hobby is free and allows two team members and 5,000 runs monthly; runs stop at that limit. Pro costs $29 a month and includes 10,000 runs monthly, with extra runs priced at $5 per additional 10,000. Model-provider charges are separate. Self-hosting is available, with users operating the application, storage, runner, upgrades, and backups in their own infrastructure. A mobile app supports agent conversations, approvals, and workspace management.
Prompt Engine
Prompt Engine is a web platform for creating, editing, organizing, and optimizing prompts for ChatGPT and other AI systems. Its assisted optimizer reviews prompts and suggests improvements, while prompt testing and dynamic template variables let users preview templates with entered values. Users can assemble multi-step prompt chains, with separate content and variables at each step. A library organizes prompts using folders, subfolders, tags, search, and grid or list views. The curated template collection can be copied to a personal library and customized. The FAQ says prompts can be created for systems including OpenAI, Anthropic Claude, Google, and open-source models. Personal-library prompts are private to the account, while administrators can create public templates; users can export individual prompts or their whole library. The free-forever Hobby plan allows up to 10 prompts and includes basic optimization, 25 credits, limited features, and email support. Pro costs $4.99 a month, with a yearly option at 49 USD per year. A one-time pack of 100 optimization credits costs 4.99 USD. Support resources include documentation, video tutorials, a blog, and email support.