Tech riderRev. 7 Oct 2026
PromptPerfect
- 1Runs onAPI, Browser, Web
- 2CostsFree plan
- 3Model supportmultiple
- 4Optimization modeautomated
- 5API accessYes
5 lines stated Written from the maker's own pages: promptperfect.beaglecorp.com

Overview
PromptPerfect is ranked #17 of 30 in AI prompt generators on Specifiction. It runs on API, Browser extension, Web. There is a free plan.
PromptPerfect plans and pricing
All plansCompared on AI prompt generators
- Free plan
- Yespromptperfect.beaglecorp.com
- Model support
- multiplepromptperfect.beaglecorp.com
- Optimization mode
- automatedpromptperfect.beaglecorp.com
- API access
- Yespromptperfect.beaglecorp.com
Facts
- Purpose
- PromptPerfect is an open-source prompt optimizer that teaches users why a rewritten prompt works.promptperfect.beaglecorp.com · 7 Oct 2026
- Optimization
- The web app lets users paste a prompt, pick a mode, optimize it, and learn why the rewrite works.promptperfect.beaglecorp.com · 7 Oct 2026
- Browser extension
- The Chrome extension is described as working on sites including ChatGPT and Gmail.promptperfect.beaglecorp.com · 7 Oct 2026
- API
- The API accepts a draft prompt and returns an optimized version for use from a backend or scripts.promptperfect.beaglecorp.com · 7 Oct 2026
- Providers
- The API supports Gemini, OpenAI, and Anthropic providers.promptperfect.beaglecorp.com · 7 Oct 2026
- Modes
- The documented optimization modes include better, specific, cot, developer, research, beginner, product, and marketing.promptperfect.beaglecorp.com · 7 Oct 2026
- API response
- The API response includes optimized text, an explanation, changes, the raw text, provider, and model.promptperfect.beaglecorp.com · 7 Oct 2026
- API keys
- Users can provide a provider API key in the request body or as a Bearer token; the documentation says the Bearer token takes precedence if both are supplied.promptperfect.beaglecorp.com · 7 Oct 2026
- Shared quota
- The hosted Gemini free tier uses configured server keys, and anonymous callers on that deployment share the quota.promptperfect.beaglecorp.com · 7 Oct 2026
- Rate limits
- The documentation says the codebase does not enforce a custom requests-per-minute counter on the synchronous API; throughput depends on the hosting platform and provider quotas.promptperfect.beaglecorp.com · 7 Oct 2026
- Security
- The homepage states that the user's API key never leaves their browser.promptperfect.beaglecorp.com · 7 Oct 2026
- License
- The homepage states that PromptPerfect is open source under the MIT License.promptperfect.beaglecorp.com · 7 Oct 2026
- Maker
- The product is identified as being by Beagle and built by the Beagle Builder Program.promptperfect.beaglecorp.com · 7 Oct 2026
Best PromptPerfect alternatives
See all 20 All accessCh 01 Vellum Free planAndroidBrowser from $30/mo7.6 All accessCh 02 PromptWizard Free planAPILinux Free to start7.4 All accessCh 03 Promptitude Free planFree trialAPI from $39/mo7.3 All accessCh 04 Google Cloud Agent Evaluation Free trialAPIWeb 7.2 All accessCh 05 Agenta Free planAPIself-hosted from $29/mo7.0 All accessCh 06 OpenPrompt Free planLinuxMac Free to start7.0
Where it ranks on Specifiction
- Best AI Prompt Generators in 2026#17 of 30
Is PromptPerfect yours?
Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.
Sources
- promptperfect.beaglecorp.com· checked 7 Oct 2026
- promptperfect.beaglecorp.com/docs· checked 7 Oct 2026

