Claude 3 Opus vs o3 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
o3 Pro by OpenAI wins on 9 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, o3 Pro scores 1410 on Chatbot Arena ELO compared to Claude 3 Opus's 1240, while o3 Pro scores 86.0% on MMLU-Pro compared to Claude 3 Opus's 68.0%.
Coding: In coding, o3 Pro scores 92.0% on HumanEval+ compared to Claude 3 Opus's 78.0%, while o3 Pro scores 70.0% on SWE-bench Verified compared to Claude 3 Opus's 22.0%, while o3 Pro scores 75.0% on LiveCodeBench compared to Claude 3 Opus's 32.0%.
Math: In math, o3 Pro scores 97.0% on MATH compared to Claude 3 Opus's 68.0%, while o3 Pro scores 99.0% on GSM8K compared to Claude 3 Opus's 88.0%.
Reasoning: In reasoning, o3 Pro scores 85.0% on GPQA Diamond compared to Claude 3 Opus's 59.4%, while o3 Pro scores 70.0% 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 o3 Pro costs $20.0/1M input and $80.0/1M output. Claude 3 Opus is the more affordable option for API usage.
Speed Comparison
Claude 3 Opus generates output at 25 tok/s compared to o3 Pro's 25 tok/s, and the time to first token is 800 ms for Claude 3 Opus versus 1200 ms for o3 Pro. Both models offer similar output speed.
Verdict
For developers prioritizing affordability, Claude 3 Opus has the edge. For those who value coding and general intelligence and math, o3 Pro is the stronger choice.
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Claude 3 Opus vs o3 Pro — FAQ
Which is better, Claude 3 Opus or o3 Pro?
o3 Pro wins on more benchmarks overall (9 vs 3). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude 3 Opus compare to o3 Pro for coding?
o3 Pro is better for coding, scoring 70.0% 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 o3 Pro?
Yes, Claude 3 Opus is cheaper. Claude 3 Opus costs $15.0/1M input and $75.0/1M output tokens. o3 Pro costs $20.0/1M input and $80.0/1M output tokens.
Which is faster, Claude 3 Opus or o3 Pro?
Both models generate output at the same speed of 25 tok/s.
What benchmarks does the Claude 3 Opus vs o3 Pro 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.