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ZeroTwo gives you access to 95+ AI models from 19 providers in a single interface. Switch between models mid-conversation, filter by provider, pin favorites, and access the full spectrum of AI capabilities without managing separate accounts or API keys.

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Model categories

ZeroTwo organizes models into four categories:
CategoryWhere to useExamples
Text / chatAny chat conversationClaude Sonnet, GPT-4o, Gemini 2.5 Pro, Grok-4
Image generationStudio → ImagesGPT-Image-1, Flux Pro, Imagen 4.0
Video generationStudio → VideoAI video models (various)
Audio generationStudio → AudioAI music and voice models (various)
Text models are selected via the model picker in the chat prompt bar. Studio pages have their own dedicated model selectors.

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Providers

ZeroTwo aggregates models from 19 text/chat providers:

OpenAI

GPT-5, GPT-4o, GPT-4.1, o3, o4-mini, and more

Anthropic

Claude Opus 4.6, Claude Sonnet 4.6, Claude Haiku 4.5, and more

Google

Gemini 3.1 Pro, Gemini 2.5 Pro, Gemini 2.5 Flash, and more

xAI

Grok-4, Grok 4 fast, and variants

Mistral

Mistral Large, Magistral, Mistral Small, Mistral Nemo

DeepSeek

DeepSeek V3, DeepSeek Reasoner

Cohere

Command A and variants

Perplexity

Sonar Pro, Sonar, and variants

Qwen

Qwen Max, Qwen Plus, and variants

Groq

Fast inference models via Groq infrastructure

OpenRouter

Additional model access via OpenRouter

More providers

Kimi, Venice, TheSys, ZAI, Inception, ByteDance, Liquid

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Plan and model access

Model access in ZeroTwo is divided into two tiers:
  • Standard models: No monthly cap. Available on all plans including Free. Includes GPT-5-mini, GPT-4o-mini, Gemini Flash Lite, Mistral Small, Grok 4 fast, and other efficient variants.
  • Premium (rate-limited) models: Counted against your monthly quota. Includes flagship models like Claude Sonnet 4.6, GPT-5, Gemini 2.5 Pro, Grok-4, and others.
PlanPremium message quota
Free0 — standard models only
Pro555 messages/month
Pro 2x1,150 messages/month
Plus UltraUnlimited
BusinessUnlimited
When your premium quota is reached, ZeroTwo automatically falls back to a standard model. See Premium vs. Standard models for full details.

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Key guides

Model picker

How to open the picker, search, filter by provider, pin favorites, and switch models mid-chat.

Premium vs. Standard

Understand the two model tiers, monthly quotas, and what happens when quota is exceeded.

Reasoning models

When to use extended-thinking models and how thinking levels work.

Anthropic (Claude)

Claude Opus, Sonnet, and Haiku — 200k context, extended thinking.

OpenAI (GPT)

GPT-5, GPT-4o, o3, o4-mini, and the full GPT lineup.

Google (Gemini)

Gemini 2.5 and 3.1 — up to 1M token context windows.