Following the preview at the end of last month, Google is now bringing its latest Gemini 4 Carbon model to the Gemini app.
AI Ultra subscribers can now access Carbon in the Gemini app, AI Mode, and Antigravity. Notably, Argon (AI Pro and up) will remain available alongside the new model.
Officially, Google says “Argon remains the ideal choice for the majority of software engineering and knowledge work, while Carbon is built for tasks that test the limits of a model’s intelligence.” Examples include “complex, multi-step coding and debugging and open-ended scientific research and discovery.”
To showcase performance on larger, more complex projects, Google Antigravity is previewing /swarm. This turns a “single prompt into a coordinated team of agents you can track in real time.”
Developers can assign Carbon to roles that demand the deepest reasoning, like architectural design, coordination, and auditing, while pairing it with faster, lighter models across parallel isolated workspaces and adversarial verifiers that test every change.
For legal, finance, and enterprise work, Carbon is said to bring “higher-precision knowledge work, artifact generation, and data analysis.” This includes how the model will follow “strict schemas and formatting to generate polished and precise spreadsheets, presentations, and reports.”
Existing benchmarks don’t adequately capture how agents reason natively over dense files with charts, images, blueprints, schematics, and tables, so we partnered with Artificial Analysis to launch the new Multimodal Knowledge Agents (MKA) benchmark. Carbon ranks #1 while using 3X fewer tokens than the next best model across 200 tasks that test a model’s multimodal performance in agentic workflows.
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