Compare AI tools
Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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ChatGPT Operator B | OpenRouter S | Replicate S | Devin A | |
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| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | One API, every model. Pay-as-you-go, no subscriptions. | Run any open-source AI model with an API call. | Cognition Labs' autonomous coding engineer. |
| Category | Agents | Dev Platform | Dev Platform | Agents |
| Pricing | Included with ChatGPT Pro $200/mo | Pay per token — model-dependent | Pay per second of compute | $500/mo |
| Best for | Power users willing to pay $200/mo for a browser bot. | Developers experimenting across models. Apps that want fallback logic. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Engineering teams offloading tickets. Ops/platform work. |
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| Kai's verdict | B-tier. Still early. Manus is more flexible for less money. | 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. | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. |
| Link | Open → | Open → | Open → | Open → |