Official documentationNot tested by BlueFish
Gemini 4 Argon is generally available
Official Google Gemini API; gemini-4-argon became generally available on 2026-10-13, with time-limited introductory pricing.
A quick glossary
Models generate and reason. Agents use tools to work on tasks. A harness manages an agent’s environment. MCP connects tools and data. Skills are reusable task guidance.
Original sources
- Gemini · Changelog ↗
ai.google.dev · 2026-10-16 · Official documentation