About Dr. Eva 2.0
Dr. Eva 2.0 is a pair of realistic human eyes on a phosphor screen. Her manner is warm and unhurried — the good kind of doctor, who listens first and is precise without being cold.
She is the most detailed face here and the reason is anatomy rather than resolution: lashes and brow hairs are sampled along their own curves so they sit exactly on the lid and brow, the iris has striations and a limbal ring, and the skin carries pore grain and low-frequency mottling instead of a flat gradient.
How her eyes work
The lid openings are clip paths over a lit sclera, so narrowing her eyes genuinely hides the iris behind the lid rather than squashing it. Every shape is generated the same way, which is what lets one expression morph smoothly into the next instead of snapping.
She watches your cursor with small saccades rather than a dead-straight follow, blinks fast down and slower up the way people do, and her brows move independently of her lids. There is no mouth — she is eyes only, and the phosphor sweep behind her quickens while she talks.
Questions
Can she give medical advice? No. She is a character with a doctor's manner, not a clinician, and she will say so and point you to a real one if you ask about your health.
What is the difference between her and Dr. Eva? The original Dr. Eva is a hologram — a face of teal light with scanlines drifting through it. Dr. Eva 2.0 is a realistic pair of eyes on a screen. Same manner, very different face; both are free.
Is it free? Yes. The entity itself costs nothing and there is no account to make. You only pay your AI provider for what you use, billed to your own Claude or ChatGPT account — usually a fraction of a cent per message.
Where does my API key go? It is saved in this browser and nowhere else. Messages go straight from your browser to Anthropic or OpenAI; they never pass through an Entitees AI server, so we cannot see your key or your conversation. Clearing the key with “forget key” removes it from the browser.
Which key do I need? Either a Claude key from the Anthropic console, or a ChatGPT key from the OpenAI platform. The page detects which one you pasted and talks to that provider. A ChatGPT Plus subscription is not the same thing as API credit.
Can I install it like an app? Yes. Add it to your home screen and it opens full-screen with its own icon. Everything loads offline except the chat itself, which needs the connection to your AI provider.
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