| About |
| Pricing |
| Rating |
| Ease of Use |
| Key Features |
| Link |
Free basic extension, Premium plans start at $9/mo for advanced features.
Platform for debugging, testing, and evaluating LLM applications.
Free developer tier, paid tiers for teams
Discover, create, and test advanced AI prompts and conversational agents.
Free basic usage • Premium from $10/mo
Marketplace for buying and selling DALL-E, GPT, and Midjourney prompts.
Pay per prompt (usually $1.99 - $4.99)
Open-source LLM observability platform with prompt tracking.
Free up to 100k requests/mo, Pro at $50/mo
Open-source LLM engineering platform for traces, evals, and prompts.
Open-source/free tier available, cloud plans scale with usage
Cutting-edge prompt optimization tool for Large Language Models.
Free tier with limited credits, Pro plans available
Enterprise platform for prompt engineering, evaluation, and fine-tuning.
Custom enterprise pricing based on volume
Control panel for LLM applications with prompt management and routing.
Free developer tier, team plans start at $49/mo
Platform for prompt management, tracking, and collaboration for LLMs.
Free up to 10k requests/mo, paid plans scale with usage
Open-source CLI and library for evaluating LLM prompts and models.
100% Free and open-source
Developer platform to experiment with, evaluate, and deploy LLM prompts.
Starts around $99/mo depending on usage
Enterprise-grade evaluation and prompt engineering platform.
Custom enterprise pricing
Open-source end-to-end platform for prompt engineering and evaluation.
Free open-source version, Cloud plans start at $39/mo
Open-source LLMOps platform focusing on prompt management and cost.
Free and open-source
Platform to manage, test, and integrate AI prompts across applications.
Free limited tier, paid plans start at $19/mo
Convert any image into detailed AI prompts for models like Midjourney, Stable Diffusion, FLUX, and ChatGPT.
One-time 3-image trial. Pro $9.90/month or $59.40/year; 300-credit pack $4.99.