Every AI model on Tusk Central AI
One chat, 30+ leading models from the providers behind ChatGPT, Grok, Claude, Gemini, and more. Most are free and unlimited. A few deep-thinking models run on monthly free credits, then simple pay-as-you-go.
What the labels mean
Free Unlimited Use as much as you want, no daily caps or timeouts. Supported by privacy-respecting ads.
Uses Credits Deep-thinking models. You get generous free credits each month, then pay only for what you use beyond that. No subscription.
Not sure which to pick? Choose Brainiac in the picker and it auto-selects a model suited to your prompt — it's one option among all the models. See how it works → or compare the free models.
Model list last updated 27 May 2026. New additions marked NEW.
| Model | Provider | Released | Access |
|---|---|---|---|
| Claude Haiku 4.5 | Anthropic | 15 Oct 2025 | Free Unlimited |
| Claude Sonnet 4.6 | Anthropic | 17 Feb 2026 | Uses Credits |
| Command R7B | Cohere | 14 Dec 2024 | Free Unlimited |
| DeepSeek V3.2 | DeepSeek | 1 Dec 2025 | Free Unlimited |
| DeepSeek V4 Pro NEW | DeepSeek | 23 Apr 2026 | Free Unlimited |
| Gemini 3.1 Flash Lite NEW | 7 May 2026 | Free Unlimited | |
| Gemini 3.1 Pro Preview | 19 Feb 2026 | Uses Credits | |
| Gemini 3.5 Flash NEW | 19 May 2026 | Uses Credits | |
| GPT-4o mini | OpenAI | 17 Jul 2024 | Free Unlimited |
| GPT-5 Nano | OpenAI | 7 Aug 2025 | Free Unlimited |
| GPT-5.4 | OpenAI | 5 Mar 2026 | Uses Credits |
| GPT-5.4 Mini NEW | OpenAI | 17 Mar 2026 | Free Unlimited |
| GPT-5.4 Nano NEW | OpenAI | 17 Mar 2026 | Free Unlimited |
| GPT-5.5 NEW | OpenAI | 24 Apr 2026 | Uses Credits |
| gpt-oss-120b | OpenAI | 5 Aug 2025 | Free Unlimited |
| gpt-oss-20b | OpenAI | 5 Aug 2025 | Free Unlimited |
| Grok 4.3 NEW | xAI | 30 Apr 2026 | Free Unlimited |
| Kimi K2 Thinking | MoonshotAI | 6 Nov 2025 | Free Unlimited |
| Kimi K2.5 | MoonshotAI | 26 Jan 2026 | Free Unlimited |
| Kimi K2.6 NEW | MoonshotAI | 20 Apr 2026 | Free Unlimited |
| Llama 4 Maverick | Meta | 5 Apr 2025 | Free Unlimited |
| Llama 4 Scout | Meta | 5 Apr 2025 | Free Unlimited |
| MiniMax M2 | MiniMax | 23 Jan 2026 | Free Unlimited |
| MiniMax M2.7 | MiniMax | 18 Mar 2026 | Free Unlimited |
| Mistral Small 3.2 24B | Mistral | 20 Jun 2025 | Free Unlimited |
| Mistral Small 4 NEW | Mistral | 16 Mar 2026 | Free Unlimited |
| Sonar | Perplexity | 27 Jan 2025 | Free Unlimited |
| Sonar Deep Research NEW | Perplexity | 6 Mar 2025 | Uses Credits |
| Sonar Pro | Perplexity | 6 Mar 2025 | Uses Credits |
New models, added regularly
The lineup grows as providers ship new releases. When a notable model launches, it shows up here and becomes selectable in the picker. Pick whichever you like — or choose Brainiac to auto-select for you.