Over 300 tebibytes of memory. That, per Google, is what the optimisations Argon agents found on their own in the workload profiles free up in its data centres once rolled out.
Usually a new model is shown with benchmarks. Google puts ahead of them what the model already does in its own house. As stagecraft it is strong. It is as verifiable as the benchmarks, which is to say on their word.
Fact
The facts: on 30 September 2026 Google announced Gemini 4 Argon. The model is rolling out to trusted cyber defenders through the Fairwind Program; for them and Google's internal teams it will be released without cyber guardrails. Google is taking part in the US government's voluntary process for pre-release model access and will open Argon to developers, enterprises and consumers after testing, starting with paid API customers and Google AI Ultra subscribers. The announced introductory price is 2 dollars per million input tokens and 10 dollars per million output, with cached input 95 percent off. The output token limit rises to 1 million from the previous 64 thousand. Per Google: 77.9 percent on DeepSWE v1.1, 51.3 percent on AutomationBench, 91.7 percent on LVBench and 68 percent on CWE-bench v1, where it ties for first place. Internally, Argon agents found optimisations that free over 300 TiB of memory in the data centres once rolled out, with estimated total savings of 500 TiB to 1 PiB.
Releasing to defenders first is now a line across the industry. Anthropic took the same road with Mythos Preview, now Google too. The logic is one: if the model is strong at attack, the guard gets it first.
The guard gets it first. Everyone else waits.
The price is the more surprising part. Two and ten dollars per million tokens, the same as Sonnet 5.5 and GPT-6.1 Sol from the same week. Three companies, three different models, one figure on the sticker, even if Google's is introductory. The difference is now in how many tokens one task consumes.
When it will reach everyone, Google does not say. "Soon" is not a date.
Official primary sources
Google - Gemini 4 Argon: our next era of frontier intelligence, 30.09.2026The visual is generated code-art, no third-party images.