Kev 4B — Free AI Chat on Rewind.ai

Chat with Kev 4B for free — no signup, no credit card. Jared Palmer's Kev 4B runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.

What is Kev 4B?

Kev 4B is a small open-weight decision model from Jared Palmer, built as a LoRA adapter and pointer head on Qwen3.5-4B-Base and served over the same /v1/systemone contract as TypeSafe's.

How does Kev 4B work?

Type your message in the box above and Kev 4B replies instantly — no setup required. Your chat history is saved locally in your browser; sign up free to sync it across devices and get an extra 10,000 tokens. You can switch between Kev 4B and other models at any time from the picker at the top.

Is Kev 4B free?

Kev 4B is pay-as-you-go at $0.04/M input tokens, but you can use it without paying: every visitor gets 2,500 free tokens a day with no sign up, and a free account raises that to 5,000.