Compare AI tools

	Replicate S	OpenRouter S	Rows A	Leonardo.ai A
Tagline	Run any open-source AI model with an API call.	One API, every model. Pay-as-you-go, no subscriptions.	Spreadsheets with AI + live integrations baked in.	Gamer + creator image gen with model fine-tuning built in.
Category	Dev Platform	Dev Platform	Data	Image
Pricing	Pay per second of compute	Pay per token — model-dependent	Free + $19-$89/user/mo	Free + $12-$60/mo
Best for	Developers using open-source models (Flux, SDXL, Whisper, etc).	Developers experimenting across models. Apps that want fallback logic.	Ops teams, marketers, anyone building dashboards from multiple sources.	Indie game devs, illustrators, anyone training custom style models.
Strengths	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Pull live data from Stripe, Slack, Google Analytics, etc. AI functions inside cells Modern UX	Train your own models on your style/character Great for game art + concept art Generous free tier
Weaknesses	Cold starts on less-popular models Pricing gets real at scale	Slight markup over direct API Some provider features not exposed	Not a full Excel replacement for heavy users Integrations best on paid tiers	General output behind Midjourney Can be overwhelming
Kai's verdict	S-tier for open-source model APIs. The default in this space.	S-tier for model-shopping. I use this for every prototype before committing.	A-tier. The most interesting spreadsheet in years. Great for ops dashboards.	A-tier for creators training custom looks. B-tier for general use.
Link	Open →	Open →	Open →	Open →