Claude Opus 5.5 und Sonnet 5.5 halten Einzug in Google Antigravity
Anthropic stellt Claude Opus 5.5 und Claude Sonnet 5.5 in Google Antigravity bereit. Die Idee: Je nach Aufgabe kommt das passende Modell zum Einsatz, etwa ein effizientes Modell für kleine Fixes und ein starkes Reasoning-Modell für umfangreiche Refactorings.
Different software engineering problems require different model strengths. While a quick lint fix or unit-test classification doesn’t warrant a heavy reasoning frontier model, refactoring a legacy service across thirty files definitely does.
Anthropic’s Claude Opus 5.5 and Claude Sonnet 5.5 are now officially available in Google Antigravity (across Antigravity 2.0 Desktop, the CLI, and IDE extensions for VS Code, JetBrains, and Visual Studio).
Here is a breakdown of what this means, along with two architecture patterns you can run right away.
Having multiple model families inside one agent harness unlocks powerful hybrid workflows.
Using the same model to both author code and critique its own changes creates blind spots. By splitting planning/implementation and validation across different model families, you catch regressions before PR review:
Running full codebase grep searches or test triage loops against frontier reasoning models blows through latency and budget.
Using Antigravity’s subagent configuration (.agents/agents/*.md ), you can offload mechanical tasks to model: flash while keeping frontier models for reasoning: