Google Releases Gemini 4 Argon to Developers

Google released its flagship AI model Gemini 4 Argon to developers and businesses worldwide on October 13, seeking to regain ground against OpenAI and Anthropic after months of delays and a leadership shakeup at its DeepMind lab (Reuters, 2026).

The model excels at what Google calls deep work on complex, multi-step tasks in coding, finance, law, cybersecurity, and science. API pricing at launch starts at $2 per million input tokens and $10 per million output tokens, with rates set to double after November 30 (Reuters, 2026).

Argon is available to paying customers through the company's AI application building tools. Google AI Pro and Ultra subscribers can access it through the Gemini app and AI Mode in Search, while the Antigravity coding tool is limited to Ultra subscribers. Teams using Argon in Antigravity increased agentic code submissions by more than 35 percent while reducing code rollbacks by nearly a third (Reuters, 2026).

Customers testing the model early include Deloitte, LexisNexis, Ambience Healthcare, and Isomorphic Labs. Google also said it would open its Fairwind Program to hundreds of additional partners. That program gives vetted cybersecurity defenders a version of Argon without its cyber guardrails. In September, the company had said it was providing the model to select cybersecurity partners only. Separately, Google will offer 10,000 scientists six months of free access to Antigravity's highest usage tier (Reuters, 2026).

The release follows a rocky stretch. Google announced in September that it no longer planned to release Gemini 3.5 Pro, which CEO Sundar Pichai had originally said would arrive in June. It also overhauled DeepMind after co-founder and CEO Demis Hassabis stepped aside and several Gemini leaders left the company (Reuters, 2026).

Argon's broad availability marks a shift from the staged rollouts that have characterized recent frontier model releases. OpenAI and Anthropic have limited their most capable systems to vetted partners, citing security concerns. Google is betting that wider access to developers and businesses will help it close the gap.