Last updated: April 5, 2026 · Reviewed by Daniel Ashford
⚡Gemini 2.5 Ultra vs Claude Sonnet 4
Head-to-head across 6 dimensions · by Daniel Ashford
Summary
Claude Sonnet 4 leads overall with an Index of 93.2 vs 93.0. Gemini 2.5 Ultra wins on accuracy, reasoning. Claude Sonnet 4 wins on safety, creativity, instruction. On pricing, Claude Sonnet 4 is more affordable.
❓ Frequently Asked Questions
Is Gemini 2.5 Ultra better than Claude Sonnet 4?
Based on the LLM Judge Index™, Claude Sonnet 4 scores higher overall (93.2 vs 93.0). Gemini 2.5 Ultra leads on accuracy, reasoning, while Claude Sonnet 4 leads on safety, creativity, instruction.
Which is cheaper, Gemini 2.5 Ultra or Claude Sonnet 4?
Claude Sonnet 4 is more affordable at $3/M tokens.
Which is better for coding?
Claude Sonnet 4 scores higher on coding (91 vs 91).
Which model is safer?
Claude Sonnet 4 has a higher safety score (96 vs 94).