The Julius model guide
OpenAI models: GPT features and pricing
Explore GPT-6 Astra and GPT-5.6 Sol, their API pricing, and how to use them through Julius.
Start free with Julius Lite. Other model access depends on your plan.
Compare OpenAI models
GPT-6 Astra is a direct choice in the Julius model menu. GPT-5.6 Sol is available through the Julius 1.2 Max agent. Compare their capabilities and API prices below; Julius access uses your Julius plan and credits.
2 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.
| Model | Consider it for | Published context | Native inputs | Julius access | API input / output |
|---|---|---|---|---|---|
| GPT-6 Astra OpenAI | Complex reasoning and professional work | 1,050,000 tokens | Text and images | Pro, Max, Ultra, and Business | $10 / $50 OpenAI |
| GPT-5.6 Sol OpenAI | Complex analysis through Julius Max | 1,050,000 tokens | Text and images | Pro, Max, Ultra, and Business Via Julius 1.2 Max | $4 / $20 OpenAI |
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.
Choose an OpenAI model or a Julius agent
The two OpenAI entries have different access paths. Decide whether you want a direct model choice or the Julius Max agent experience before comparing token prices.
Does the largest context window mean the best spreadsheet analysis?
Context is one specification. A useful analysis also depends on the instructions, file handling, tools, and verification. Start with the same small task and inspect the calculations before scaling up.
Selection guidance draws on provider documentation and Julius access. It is not a ranking from comparative performance tests.
Explore other models and research
Read the details, compare tradeoffs, and find another model for your work.