Compare AI tools

	OpenRouter S	DALL-E 3 B	Leonardo.ai A	Replicate S
Tagline	One API, every model. Pay-as-you-go, no subscriptions.	OpenAI's image model. Built into ChatGPT Plus.	Gamer + creator image gen with model fine-tuning built in.	Run any open-source AI model with an API call.
Category	Dev Platform	Image	Image	Dev Platform
Pricing	Pay per token — model-dependent	Included with ChatGPT Plus $20/mo	Free + $12-$60/mo	Pay per second of compute
Best for	Developers experimenting across models. Apps that want fallback logic.	ChatGPT Plus users who want images without paying extra.	Indie game devs, illustrators, anyone training custom style models.	Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Excellent prompt understanding Built into ChatGPT — no extra subscription Good at composition + concepts	Train your own models on your style/character Great for game art + concept art Generous free tier	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy
Weaknesses	Slight markup over direct API Some provider features not exposed	Aesthetic ceiling below Midjourney + Ideogram Text rendering worse than Ideogram No fine control	General output behind Midjourney Can be overwhelming	Cold starts on less-popular models Pricing gets real at scale
Kai's verdict	S-tier for model-shopping. I use this for every prototype before committing.	B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.	A-tier for creators training custom looks. B-tier for general use.	S-tier for open-source model APIs. The default in this space.
Link	Open →	Open →	Open →	Open →