The best of AI.All in one app.
One roof
Every frontier AI you'd want to chat with.
We add new models the week they launch. As of April 2026, the ZeroTwo workspace runs every model below — and 50+ more — under a single subscription.
GPT-5
OpenAI
Claude 4.5 Sonnet
Anthropic
Gemini 2.5 Pro
Grok 4
xAI
Perplexity
Perplexity
DeepSeek R1
DeepSeek
Llama 4
Meta · Groq
Mistral Large
Mistral
Qwen 3
Alibaba
Kimi K2
Moonshot
Cohere Command
Cohere
Liquid LFM
Liquid AI
See every model you'll unlock on the models page, or pick the best one for coding, writing, and research — all included on ZeroTwo Pro.
Why multi-model
No single AI is best at everything you'll chat about.
The 2024 edition of the Stanford AI Index Report documented that the gap between the top frontier models has narrowed to within a few percentage points on most public benchmarks — but the per-task winners change every quarter. By early 2026, Claude 4.5 Sonnet leads code-refactor evaluations, GPT-5 leads multi-step reasoning, Gemini 2.5 Pro leads long-context document analysis, and Grok 4 leads real-time cultural and market context.
This is why locking yourself into a single product is a quiet tax on your output. McKinsey's 2024 State of AI reported that 65% of organizations were using generative AI regularly — nearly double the prior year — and the highest-output teams used three or more different frontier models in a typical week (source). They didn't pick a winner; they picked the right model per task.
ZeroTwo collapses that workflow into a single thread. You can ask GPT-5 to reason through a math problem, hand the result to Claude 4.5 Sonnet to write the explanation, and pipe the final draft to Gemini 2.5 Pro to fact-check against a 200-page reference PDF — all without leaving the conversation, copying prompts, or paying five separate bills. This is what we mean when we say AI chat should be multi-model by default.
"I keep five model tabs open at all times. Different models are good at different things — being able to pick is the actual superpower of using AI in 2025."
Reuters reported in late 2025 that ChatGPT reached 800 million weekly active users. The category isn't going anywhere — but the question users are now asking has shifted from "should I chat with AI?" to "which AI should I chat with for this task?" That second question is what ZeroTwo is built around.
Cheat sheet
Best AI to chat with — per task.
A pragmatic guide based on public benchmarks, leaderboards, and our own usage telemetry across millions of ZeroTwo conversations in 2026.
Long-form writing
Claude 4.5 Sonnet
Holds voice across 10K+ tokens.
Coding & refactors
Claude 4.5 / GPT-5
Whole-file edits, fewer regressions.
Live web research
Gemini 2.5 / Perplexity
Real-time citations.
Image generation
GPT Image / FLUX Pro
Best prompt adherence in 2026.
Math & reasoning
GPT-5 / DeepSeek R1
Top AIME / GPQA scores.
Real-time / culture
Grok 4
Live X + web context.
Try every model free — switch mid-thread, keep your context.
GPT-5, Claude 4.5 Sonnet, Gemini 2.5 Pro, Grok 4 — one login, no card.
Built into the chat
More than chat — every AI superpower in one thread.
When you chat with AI on ZeroTwo, the chat is the front door. Image generation, deep research, code execution, and document analysis are one click away — no extra tab, no extra subscription.
What people chat about
Eight things you can do in the next five minutes.
- →
Draft a 1,200-word essay in your voice
Claude 4.5 Sonnet
- →
Refactor a tangled React component
Claude 4.5 / GPT-5
- →
Summarize a 200-page contract
Gemini 2.5 Pro
- →
Generate 4 product hero images
GPT Image / FLUX Pro
- →
Run deep research on a market
Gemini + Perplexity
- →
Get a real-time read on the markets
Grok 4
- →
Tutor yourself through linear algebra
GPT-5 / DeepSeek R1
- →
Translate a 20-page deck into 5 languages
Claude 4.5 Sonnet
See more use cases on ZeroTwo or skip the ChatGPT-only tax — switch to multi-model chat.
Frequently asked
Questions about chatting with AI.
Key takeaways
- Chatting with AI in 2026 means switching between frontier models — no single model is best at every task.
- ZeroTwo lets you chat with GPT-5, Claude 4.5 Sonnet, Gemini 2.5 Pro, Grok 4, Llama, Mistral, and DeepSeek under one login.
- Switch between models mid-thread without losing context, files, or history.
- Image generation, deep research agents, and the coding canvas are built into the same chat — not bolted on.
- Free tier needs no credit card. Pro adds unlimited messages, images, files, and 60+ models.
Published January 15, 2026 · Updated April 24, 2026 · Reviewed by ZeroTwo Editorial
Related guides
Real estate workflows in chat — pull a real estate CMA or draft a buyer agreement in 60 seconds.
Stop picking a model. Chat with all of them.
One login. Every frontier AI in a single thread. Free tier — no credit card.