The Julius model guide

Kimi models: Kimi K3 research and pricing

Learn about Kimi K3, its open weights, long context, research resources, and Julius access.

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Explore the model

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

Cohort heatmap and retention curves showing customer-weighted retention of 56.7% in month one and 50% in month two. — Customer retention dashboardIllustrative output · Fictional dataView full size

Kimi K3 details

Kimi K3 is Moonshot AI’s open-weight model for extended coding and knowledge work. You can choose Kimi K3 in Julius without downloading or hosting its weights. Provider API pricing and a Julius subscription are separate ways to access the model.

Moonshot AI

On Julius

Kimi K3

Long-context research and code-based analysis

Explore long-context research and reproducible analysis with Moonshot AI’s open-weight model.

Available on Julius · 1,048,576 tokens

View model details

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.

Kimi in Julius, through an API, or with open weights

Kimi K3 has several access paths. Choose between an application workflow, a hosted API integration, and operating the model yourself.

Work with Kimi in Julius

Choose Kimi K3 from the model menu on an eligible plan. Start with the retention example to see how an analysis should handle cohorts of different sizes.

Kimi K3: worked example

Build with a hosted API

Hosted pricing depends on the serving provider and service tier. This guide identifies Fireworks rates explicitly so they are not mistaken for a universal Kimi price.

Kimi K3: pricing

Evaluate the open weights

Moonshot publishes weights and a model card. Review the license, inference requirements, and deployment instructions before choosing self-hosting; open weights still require infrastructure to run.

Kimi K3: official research

Does Julius expose every native Kimi capability?

The current Julius configuration uses Kimi for text and tool work. Consult the access notes separately from the model card’s native visual capabilities.

Selection guidance draws on provider documentation and Julius access. It is not a ranking from comparative performance tests.

Moonshot’s Kimi K3 model card and weights