Get lifetime access to ChatGPT, Gemini, Claude and more for $54.97

Picking the right AI model for a task used to mean opening multiple tabs and running the same prompt several times. ChatPlayground puts GPT, Claude Sonnet 4, Gemini 1.5 Flash, DeepSeek V3, Llama, Perplexity and other models in one interface, lets you enter a single prompt, and shows results side by side so you can choose the best output.

The platform includes prompt engineering tools to refine and optimize prompts, image and PDF chat for context-aware responses, saved conversation history for ongoing projects, and AI image generation. The Unlimited Plan removes message limits entirely and offers priority access to new models and features along with priority customer support.

It’s available to new and existing users, supports unlimited devices, includes updates, and runs on the latest versions of Chrome, Edge, and Firefox. A lifetime Unlimited Plan is on sale for $54.97 (was $619, save $564.03). By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided.

chatplayground, chatgpt, gemini 1.5, claude sonnet, deepseek v3, llama, perplexity, unlimited plan, lifetime access, prompt engineering