Who is PromptPerfect?
PromptPerfect is a prompt optimizer from Jina AI. You paste a prompt and it returns a polished rewrite, with support for image prompts, multi-model comparison, and an API. Jina has said it will no longer be available after September 1, 2026, following Elastic's acquisition of Jina AI in October 2025. If you are moving off it, see our migration guide.
Side-by-side comparison
| Axis | FixMyPrompt | PromptPerfect | Winner |
|---|---|---|---|
| Output format | 0–100 score + 7-axis weak-spot report + rewrite | Rewritten prompt only | FixMyPrompt |
| Explains why | Yes every issue tagged critical/major/minor with a fix | No black-box rewrite | FixMyPrompt |
| Image prompt support | Yes Midjourney/DALL-E/Flux composition rubric | Yes Midjourney/Stable Diffusion/DALL-E, a core focus for them | Tie |
| Free tier | 3 free QA reports/day, no signup | 10 requests/day on the free plan | Tie |
| Pricing | Pay-as-you-go from $2.99 no subscription | Subscription $19.99/mo Pro, $99.99/mo Pro Max | FixMyPrompt |
| Multi-model rubric | Yes model-agnostic 7-axis scoring | Optimized per model preset | Tie |
| Inline browser extension | Yes ChatGPT/Claude/Gemini/Perplexity/Grok | Web app only | FixMyPrompt |
| Speed | 5–10s for scored report | 2–4s for rewrite | Them |
When PromptPerfect wins
- You want the fastest possible rewrite and don't care why it improved.
- You're already in Jina's stack and want consistency.
- You prefer subscriptions over pay-as-you-go.
When FixMyPrompt wins
- You want to learn what makes prompts work, not just get a rewrite.
- You need image-prompt QA for Midjourney/DALL-E/Flux.
- You want pay-as-you-go pricing instead of a subscription.
- You're shipping prompts into production and need a documented rationale.
Bottom line
Choose PromptPerfect if you want a quick rewrite and don't care why it is better. Choose FixMyPrompt if you want a scored report that teaches you what makes prompts work and a rewrite you can verify line by line.
FAQ
Is FixMyPrompt cheaper than PromptPerfect?
FixMyPrompt is pay-as-you-go from $2.99 with no subscription credits never expire. PromptPerfect uses subscription pricing. For light users, FixMyPrompt is significantly cheaper.
Can FixMyPrompt fix image prompts like PromptPerfect?
Yes. Image prompts get their own rubric: subject specificity, style anchors with conflict detection (it catches things like photorealistic and anime in the same prompt), camera and lens, colour palette, and syntax. Rewrites come back in tag form for Midjourney and SDXL and in natural language for Flux and DALL-E. Image prompts were a core strength for PromptPerfect too; the difference is that we score them and name what is wrong.
3 free QA reports per day. No signup. No subscription.