The best Jina AI / PromptPerfect alternative
— already live today
After acquiring PromptPerfect, Jina AI announced it will shut the platform down on September 1, 2026 and permanently delete all user data on October 1. Prompt Optimizer is a fully independent prompt engineering IDE — no acquisition risk, no shutdown date — with the same core features and more.
What happened
Feature comparison
| Feature | Jina / PromptPerfect | Prompt Optimizer |
|---|---|---|
| Prompt Optimization | ✓ | ✓ |
| Auto-Tune (iterative loops) | ✓ | ✓ |
| Interactive Refinement | ✓ | ✓ |
| Multi-model support | ✓ | ✓ |
| REST API for prompt execution | ✓ | ✓ |
| Curated Prompt Store | — | ✓ |
| Creator Studio workflows | — | ✓ |
| 1-click prompt import | — | ✓ |
| BYOK (Enterprise) | — | ✓ |
| Online after September 1, 2026 | — | ✓ |
For developers using the Jina Prompt API
If your application calls the Jina PromptPerfect REST API, those endpoints will return errors after September 1, 2026. Prompt Optimizer's Enterprise plan includes API access with the same optimization capabilities — swap your endpoint, keep your workflow.
- ✓POST /api/enhance — same optimization endpoint
- ✓Model-specific routing (ChatGPT, Claude, Gemini, Midjourney, SD)
- ✓6-dimension quality scoring on every output
- ✓BYOK support for Enterprise teams
Import your prompts before October 1
Export your library from Jina PromptPerfect (JSON or CSV). Sign in and drop the file in your account — every prompt is scored and added to your history instantly. After October 1, Jina permanently deletes all user data.
Import prompts → AccountSwitch before the shutdown
Prompt Optimizer is fully independent — no acquisition risk, no shutdown date. Start free and migrate your prompts today.
Get started free — no credit card required10 free optimizations per day. Upgrade anytime.
Frequently asked questions
Will Prompt Optimizer also shut down?
No. Prompt Optimizer is fully independent — not acquired, not affiliated with Jina AI. There is no shutdown date.
Can I import my Jina / PromptPerfect prompts?
Yes. Prompt Optimizer supports drag-and-drop import of PromptPerfect JSON and CSV exports, up to 500 prompts at a time.
Is the optimization quality comparable?
Yes — and in many cases better. Prompt Optimizer uses Gemini 2.5 Flash with model-specific architectures and a 6-dimension scoring engine that shows you exactly how your prompt improved.
What if I have a paid PromptPerfect plan?
Prompt Optimizer's Creator Pro plan is $29/mo and includes 1,500 credits, Auto-Tune, and all prompt packs — a full replacement for PromptPerfect with features it never offered.