Claude 3 Opus vs Claude Haiku 4.5
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Haiku 4.5 by Anthropic wins on 8 of 14 benchmarks against Claude 3 Opus by Anthropic, which leads on 3. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Claude 3 Opus scores 1240 on Chatbot Arena ELO compared to Claude Haiku 4.5's 1220, while Claude 3 Opus scores 68.0% on MMLU-Pro compared to Claude Haiku 4.5's 65.0%.
Coding: In coding, both score 78.0% on HumanEval+, while Claude Haiku 4.5 scores 30.0% on SWE-bench Verified compared to Claude 3 Opus's 22.0%, while Claude Haiku 4.5 scores 35.0% on LiveCodeBench compared to Claude 3 Opus's 32.0%.
Math: In math, Claude Haiku 4.5 scores 70.0% on MATH compared to Claude 3 Opus's 68.0%, while both score 88.0% on GSM8K.
Reasoning: In reasoning, Claude 3 Opus scores 59.4% on GPQA Diamond compared to Claude Haiku 4.5's 40.0%, while Claude Haiku 4.5 scores 18.0% on ARC-AGI compared to Claude 3 Opus's 8.0%.
Context: In context, both score 200K on Context Length.
Pricing Comparison
Claude 3 Opus costs $15.0/1M input tokens and $75.0/1M output tokens, while Claude Haiku 4.5 costs $1.0/1M input and $5.0/1M output. Claude Haiku 4.5 is the more affordable option for API usage.
Speed Comparison
Claude 3 Opus generates output at 25 tok/s compared to Claude Haiku 4.5's 180 tok/s, and the time to first token is 800 ms for Claude 3 Opus versus 120 ms for Claude Haiku 4.5. Claude Haiku 4.5 delivers faster throughput.
Verdict
For developers prioritizing general intelligence, Claude 3 Opus has the edge. For those who value coding and math and affordability and speed, Claude Haiku 4.5 is the stronger choice.
View Individual Model Pages
Claude 3 Opus vs Claude Haiku 4.5 — FAQ
Which is better, Claude 3 Opus or Claude Haiku 4.5?
Claude Haiku 4.5 wins on more benchmarks overall (8 vs 3). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude 3 Opus compare to Claude Haiku 4.5 for coding?
Claude Haiku 4.5 is better for coding, scoring 30.0% on SWE-bench Verified compared to 22.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude 3 Opus cheaper than Claude Haiku 4.5?
Yes, Claude Haiku 4.5 is cheaper. Claude 3 Opus costs $15.0/1M input and $75.0/1M output tokens. Claude Haiku 4.5 costs $1.0/1M input and $5.0/1M output tokens.
Which is faster, Claude 3 Opus or Claude Haiku 4.5?
Claude Haiku 4.5 is faster, generating output at 180 tok/s compared to 25 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude 3 Opus vs Claude Haiku 4.5 comparison cover?
This comparison covers 14 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, LiveCodeBench, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.