Estimated spend for typical coding and autonomous agent workloads based on published per-token rates:
Gemini 3.5 Flash Lite · 10M In + 2M Out—Claude Sonnet 5.5 · 10M In + 2M Out$4.00Billing ModelPrepaid · $0 Hard Stop
When to Route to Gemini 3.5 Flash Lite vs Claude Sonnet 5.5
Because Newton’s exposes both gemini-3.5-flash-lite and claude-sonnet-5-5 behind the same API key and base URL, engineering teams frequently combine both models in the same workflow:
Primary Planning & ArchitectureGemini 3.5 Flash Lite (gemini-3.5-flash-lite)