Which AI models are free on AskAI.free?
Quick answer: ChatGPT 4o, Claude Sonnet 3.5 and Gemini Flash are available on the free tier; premium models like Claude Sonnet 4 and Gemini 2.5 Pro require Pro or Max.
The free tier covers our most popular general-purpose models:
- ChatGPT 4o — fast, conversational, great for everyday questions.
- Claude Sonnet 3.5 — strong writing and reasoning, free to use here.
- Gemini Flash — lightning-fast Google model for quick answers.
Premium models are unlocked on Pro and Max:
- Claude Sonnet 4 — Anthropic's strongest Sonnet, exceptional at long-form writing and nuanced instructions.
- ChatGPT 4.1 — OpenAI's deeper reasoning model.
- Gemini 2.5 Pro — Google's flagship multimodal model.
- Perplexity-powered search — live web results with citations.
Try it for yourself — your first question is free, no signup needed.
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