o3 vs o3 Mini
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
o3 by OpenAI wins on 13 of 18 benchmarks against o3 Mini by OpenAI, which leads on 4. 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 scores 1380 on Chatbot Arena ELO compared to o3 Mini's 1320, while o3 scores 84.0% on MMLU-Pro compared to o3 Mini's 78.0%, while o3 scores 49.4% on SimpleQA compared to o3 Mini's 13.0%.
Coding: In coding, o3 scores 90.0% on HumanEval+ compared to o3 Mini's 87.0%, while o3 scores 69.1% on SWE-bench Verified compared to o3 Mini's 50.0%, while o3 scores 70.0% on LiveCodeBench compared to o3 Mini's 55.0%.
Math: In math, o3 scores 96.0% on MATH compared to o3 Mini's 93.0%, while o3 scores 98.5% on GSM8K compared to o3 Mini's 97.0%.
Reasoning: In reasoning, o3 scores 83.3% on GPQA Diamond compared to o3 Mini's 77.0%, while o3 scores 75.7% on ARC-AGI compared to o3 Mini's 45.0%, while o3 scores 95.8% on BBH compared to o3 Mini's 88.5%, while o3 scores 94.0% on Winogrande compared to o3 Mini's 89.0%.
Context: In context, both score 200K on Context Length.
Pricing Comparison
o3 costs $2.0/1M input tokens and $8.0/1M output tokens, while o3 Mini costs $1.1/1M input and $4.4/1M output. o3 Mini is the more affordable option for API usage.
Speed Comparison
o3 generates output at 40 tok/s compared to o3 Mini's 100 tok/s, and the time to first token is 800 ms for o3 versus 400 ms for o3 Mini. o3 Mini delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math, o3 has the edge. For those who value affordability and speed, o3 Mini is the stronger choice.
View Individual Model Pages
o3 vs o3 Mini — FAQ
Which is better, o3 or o3 Mini?
o3 wins on more benchmarks overall (13 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does o3 compare to o3 Mini for coding?
o3 is better for coding, scoring 69.1% on SWE-bench Verified compared to 50.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is o3 cheaper than o3 Mini?
Yes, o3 Mini is cheaper. o3 costs $2.0/1M input and $8.0/1M output tokens. o3 Mini costs $1.1/1M input and $4.4/1M output tokens.
Which is faster, o3 or o3 Mini?
o3 Mini is faster, generating output at 100 tok/s compared to 40 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the o3 vs o3 Mini comparison cover?
This comparison covers 18 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, SimpleQA, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.