tokevenClaude Sonnet 4.5 vs Gemini Robotics ER 2
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 4.5
Mid-tierGemini Robotics ER 2
Fast / BudgetQuality
Task confidence comparison
Guidance
When to use Claude Sonnet 4.5 vs Gemini Robotics ER 2
Choose Claude Sonnet 4.5 when...
- -You need a larger context window (200K vs 131.072K)
- Similar performance; consider provider preference or ecosystem fit.
Choose Gemini Robotics ER 2 when...
- -Cost matters: 67% cheaper on input tokens
At scale
Cost at scale
FAQ
When should I use Claude Sonnet 4.5 instead of Gemini Robotics ER 2?
Claude Sonnet 4.5 and Gemini Robotics ER 2 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Gemini Robotics ER 2 cheaper than Claude Sonnet 4.5?
Yes. Gemini Robotics ER 2 input costs $1.00/MTok vs $3.00/MTok for Claude Sonnet 4.5, saving 67% on input.
What are the context window sizes for Claude Sonnet 4.5 and Gemini Robotics ER 2?
Claude Sonnet 4.5 has a 200K token context window. Gemini Robotics ER 2 has a 131.072K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Sonnet 4.5 and Gemini Robotics ER 2 stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.