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Gemma 4, Llama 4, and the State of Western Open Source AI

June 2026 · 6 min read · AI Strategy

Hand-drawn illustration of a person weighing two options on a balance scale
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Most open source coverage in 2026 reads like a leaderboard, and Chinese labs sit at the top of it. The headlines move every fortnight as a new model takes the lead. For an Australian business owner trying to make a real decision, that race is mostly noise. The two Western open releases from Google and Meta still matter, and the choice that actually shapes your spend has very little to do with which name happens to be in front this week.

Google's Gemma 4 and Meta's Llama 4 are the open models most Australian teams will seriously weigh. They will not always win a benchmark against the latest release from a Chinese lab, but they bring something a benchmark does not measure. You get familiar tooling, a broad community, and documentation your engineers can already read. For a small team without a research department, that practical support often matters more than a point or two on a public test.

Why the Western open models still matter

Capability is converging across the whole field. The gap between a good open model and a managed one keeps narrowing for everyday business work, which pushes the softer factors to the front. When two models can both draft a report, summarise a contract, or answer a customer question well enough, the deciding question is no longer raw intelligence. It becomes how easy each model is to run, hire for, and keep supported over the next two years.

  • Familiar tooling and a large community your team can actually lean on

  • Llama 4 Scout offers very large context windows for long documents

  • Gemma 4 suits smaller, efficient deployments on modest hardware

  • Ecosystems and documentation that are easy to hire for in Australia

Gemma 4 and Llama 4 in plain terms

Gemma 4 is Google's compact and efficient family. It is built to run on smaller hardware, which makes it a sensible pick when you want a local model for one narrow task without renting a large GPU. Llama 4 is Meta's broader range, with the Scout variant aimed squarely at very long context work such as reading whole contracts or codebases in one pass. Both ship with licences permissive enough for most commercial use, though you should still read the exact terms rather than trust the open label on the announcement.

  • Gemma 4: efficient and smaller, good for tight hardware budgets

  • Llama 4 Scout: very large context, good for long-document workloads

  • Both are well supported, but confirm the licence for your specific use

How to choose a model

The selection itself is the same regardless of where a model was trained. Match the model to your real workload rather than the headline score, and test it on your own tasks before you commit anything to production. A model that tops a public chart can still trail on the exact job you need done, because public benchmarks rarely look like your tickets, your documents, or your customers.

  • Match the model size to your real workload, not the leaderboard

  • Check the licence terms for commercial and competitive use

  • Account for the running cost and the support burden, not just accuracy

  • Test on your own tasks before you move anything into production

The decision that actually moves your budget

Here is the part the leaderboard hides. For an Australian SMB, the choice between a Western and a Chinese open model rarely moves the total cost by much at all. The choice to self-host in the first place can swing the budget by $60,000 a year or more once you count compute, on-call cover, and security work. A modest self-hosted setup for a Sydney team can reach that $60,000 figure before the model returns a single dollar of value, while a managed model like Claude bills only for what you actually use.

  • Self-hosting adds GPU rental, often $3 to $12 per hour for each running instance

  • It needs an engineer who genuinely understands inference, scaling, and security

  • Compliance work to meet the Privacy Act sits on top of all of it

  • A managed model removes that fixed overhead and bills per use instead

A worked example for a 30-person firm

Picture a 30-person professional services firm in Melbourne weighing an open model for internal drafting. On paper, free weights look like an easy saving. In practice, the firm would need a GPU instance running through the day, a part-time engineer to keep it healthy, and a security review to satisfy the Privacy Act. That stack lands near $60,000 a year. The same firm running the same drafting on a managed model like Claude might spend a fraction of that, because it pays per use and carries none of the maintenance. The open path only wins once volume is high and steady enough to keep the hardware busy, which most firms this size never reach.

Where Claude fits for an Australian SMB

For most Australian small and mid-size businesses, a managed model is the practical default, and we build on Claude first. The reason is not loyalty to a brand. A managed model removes the infrastructure and on-call burden a small team cannot reasonably carry, and it keeps sensitive work under controls you can actually demonstrate to a client or a regulator. Open source still earns its place for narrow, high-volume tasks where you own the data and the hardware stays genuinely busy. The honest goal is to use each option where it fits the work, not to pick a permanent side in someone else's contest.

A simple order of operations

  • Settle self-hosted versus managed before you shortlist any single model

  • Then match a model to the workload and confirm the licence in full

  • Keep the build portable so swapping a model later stays cheap

Get that order right and the Gemma versus Llama question becomes a small, late detail rather than the decision your budget hinges on. If you want help sizing the bigger call for your own business, book a brainstorm and we will cost both paths in plain figures.

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