Estimated spend for typical coding and autonomous agent workloads based on published per-token rates:
DeepSeek V4 Flash 0731 High · 10M In + 2M Out—Claude Opus 5 · 10M In + 2M Out$10.00Billing ModelPrepaid · $0 Hard Stop
When to Route to DeepSeek V4 Flash 0731 High vs Claude Opus 5
Because Newton’s exposes both deepseek-v4-flash-0731-high and claude-opus-5 behind the same API key and base URL, engineering teams frequently combine both models in the same workflow:
Primary Planning & ArchitectureDeepSeek V4 Flash 0731 High (deepseek-v4-flash-0731-high)
High-Volume Execution & VerificationClaude Opus 5 (claude-opus-5)