The Julius model guide

Explore AI models. Find the right fit.

Compare capabilities, pricing, and Julius access. Find a model for your work, then try it with a practical example.

Start free with Julius Lite. Other model access depends on your plan.

Presentation slide showing revenue rising to $42,000 while gross profit falls to $13,200, with a reconciled profit bridge.
Quarterly margin reviewIllustrative output · Fictional dataView full size

Compare AI models and Julius agents

14 results

API prices are USD per million input / output tokens. Julius uses separate plans and credits. See each model for pricing tiers and conditions. Scroll the table to compare all columns.

AI model capabilities, Julius plans, and provider API prices
ModelConsider it forPublished contextNative inputsJulius accessAPI input / output
GPT-6 Astra

OpenAI

Complex reasoning and professional work1,050,000 tokensText and images

Pro, Max, Ultra, and Business

$10 / $50

OpenAI

Claude Sonnet 5.5

Anthropic

Everyday work with a balance of speed and cost1,000,000 tokensText and images

Pro, Max, Ultra, and Business

$2 / $10

Anthropic

Claude Opus 5.5

Anthropic

Sustained research, coding, and knowledge work1,000,000 tokensText and images

Pro, Max, Ultra, and Business

$4 / $20

Anthropic

Claude Fable 5.1

Anthropic

Difficult reasoning and complex, multi-step work1,000,000 tokensText and images

Pro, Max, Ultra, and Business

$10 / $50

Anthropic

Muse Wonder

Meta

Planning and checking work across multiple steps1,048,576 tokensText, images, audio, video, and PDFs

Pro, Max, Ultra, and Business

$4 / $20

Meta

Grok 4.7

xAI

Reasoning and coding with adjustable effort500,000 tokensText and images

Pro, Max, Ultra, and Business

$2 / $6

xAI

Kimi K3

Moonshot AI

Long-context research and code-based analysis1,048,576 tokensText, images, and video (provider capabilities)

Pro, Max, Ultra, and Business

$3 / $15

Fireworks standard serverless

GPT-5.6 Sol

OpenAI

Complex analysis through Julius Max1,050,000 tokensText and images

Pro, Max, Ultra, and Business

Via Julius 1.2 Max

$4 / $20

OpenAI

Claude Haiku 5.5

Anthropic

Researching fast classification and extraction models1,000,000 tokensText and images

Not available

From $0.10 / From $0.50

Anthropic

Gemini 3.1 Pro Preview

Google

Researching multimodal reasoning capabilities1,048,576 input tokensText, images, video, audio, and PDFs

Not available

$2 / $12

Google

Julius 1.2

Julius

Most everyday questions and workplace tasksJulius agentPrompts and files supported by Julius

Pro, Max, Ultra, and Business

Uses Julius credits
Julius 1.2 Lite

Julius

Quick questions with lower credit usageJulius agentPrompts and files supported by Julius

Free, Pro, Max, Ultra, and Business

Uses Julius credits
Julius 1.2 Max

Julius

Complex analysis with additional reasoningJulius agentPrompts and files supported by Julius

Pro, Max, Ultra, and Business

Uses Julius credits
Julius 1.2 Ultra

Julius

The most complex Julius tasksJulius agentPrompts and files supported by Julius

Max, Ultra, and Business

Uses Julius credits

Explore what you can make with Julius: analyze Excel spreadsheets, create presentations, or build websites and interactive apps. Each model page explains its availability on Julius.

Start with a task you can check

Each supported model page includes a worked example with sample data, an expected result, and a prompt you can try.

Clean a sales export

Find duplicate orders and refunds before reporting growth.

Explore the example →

Explain a margin change

Separate sales growth from the costs that reduce profit.

Explore the example →

Reconcile invoices

Keep unpaid invoices, overpayments, and unmatched cash visible.

Explore the example →

Frequently asked questions

Which AI models are available on Julius?
Alongside Julius’s own agents, eligible paid plans include GPT-6 Astra, Claude Sonnet 5.5, Claude Opus 5.5, Claude Fable 5.1, Muse Wonder, Grok 4.7, and Kimi K3. Each model page lists its plan requirements.
Can I try AI models for free?
Julius Lite is available on the Free plan within its credit allowance. Other models require an eligible paid plan.
Are model API prices the same as Julius pricing?
API prices are provider charges for tokens. Julius is a workspace with subscription plans and credits for the work you perform. The comparison labels these separately.

Put a model to work on your next task

Bring a question or a file. Explore, analyze, and create with Julius.