Estimated spend for typical coding and autonomous agent workloads based on published per-token rates:
Gemini 3.5 Flash Extra Low · 10M In + 2M Out—GPT-6.1 Sol · 10M In + 2M Out—Billing ModelPrepaid · $0 Hard Stop
When to Route to Gemini 3.5 Flash Extra Low vs GPT-6.1 Sol
Because Newton’s exposes both gemini-3.5-flash-extra-low and gpt-6.1-sol behind the same API key and base URL, engineering teams frequently combine both models in the same workflow:
Primary Planning & ArchitectureGemini 3.5 Flash Extra Low (gemini-3.5-flash-extra-low)
High-Volume Execution & VerificationGPT-6.1 Sol (gpt-6.1-sol)