Last updated: April 5, 2026 · Reviewed by Daniel Ashford
👑Claude Opus 4 vs Claude Haiku 4.5
Head-to-head across 6 dimensions · by Daniel Ashford
Summary
Claude Opus 4 leads overall with an Index of 96.0 vs 85.5. Claude Opus 4 wins on accuracy, reasoning, safety, coding, creativity, instruction. On pricing, Claude Haiku 4.5 is more affordable.
❓ Frequently Asked Questions
Is Claude Opus 4 better than Claude Haiku 4.5?
Based on the LLM Judge Index™, Claude Opus 4 scores higher overall (96.0 vs 85.5). Claude Opus 4 leads on accuracy, reasoning, safety, coding, creativity, instruction, while Claude Haiku 4.5 leads on no dimensions.
Which is cheaper, Claude Opus 4 or Claude Haiku 4.5?
Claude Haiku 4.5 is more affordable at $0.8/M tokens.
Which is better for coding?
Claude Opus 4 scores higher on coding (94 vs 82).
Which model is safer?
Claude Opus 4 has a higher safety score (98 vs 92).