Compare AI tools

	OpenRouter S	Replicate S	ChatGPT Operator B	Groq S
Tagline	One API, every model. Pay-as-you-go, no subscriptions.	Run any open-source AI model with an API call.	OpenAI's browser agent. Clicks and types on websites for you.	The fastest AI inference in the world. Crazy low latency.
Category	Dev Platform	Dev Platform	Agents	Dev Platform
Pricing	Pay per token — model-dependent	Pay per second of compute	Included with ChatGPT Pro $200/mo	Free tier + pay-as-you-go API
Best for	Developers experimenting across models. Apps that want fallback logic.	Developers using open-source models (Flux, SDXL, Whisper, etc).	Power users willing to pay $200/mo for a browser bot.	Developers who need sub-100ms LLM responses.
Strengths	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks	500+ tokens/sec on Llama/Mixtral — feels instant Custom LPU hardware Great free tier
Weaknesses	Slight markup over direct API Some provider features not exposed	Cold starts on less-popular models Pricing gets real at scale	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate	Open-weight models only (no Claude/GPT) Less flexibility on custom configs
Kai's verdict	S-tier for model-shopping. I use this for every prototype before committing.	S-tier for open-source model APIs. The default in this space.	B-tier. Still early. Manus is more flexible for less money.	S-tier for speed. When latency is the product, start here.
Link	Open →	Open →	Open →	Open →