Compare/o3-pro vs Claude 4.1 Opus (Reasoning)

o3-provsClaude 4.1 Opus (Reasoning)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

OpenAI

o3-pro

Input
$20/M
Output
$80/M
Speed
21 tok/s
TTFT
89.23s
Anthropic

Claude 4.1 Opus (Reasoning)

Input
$15/M
Output
$75/M
Speed
40 tok/s
TTFT
9.31s

Winner by Category

Cheaper
Claude 4.1 Opus (Reasoning)
Faster (tok/s)
Claude 4.1 Opus (Reasoning)
Lower Latency
Claude 4.1 Opus (Reasoning)
Benchmarks (1-10)
Claude 4.1 Opus (Reasoning)

Pricing Comparison

Metrico3-proClaude 4.1 Opus (Reasoning)
Input ($/M tokens)$20$15
Output ($/M tokens)$80$75
Cost for 1M input + 100K output tokens:
o3-pro$28.00
Claude 4.1 Opus (Reasoning)$22.50

Speed Comparison

Output Speed (tokens/s) — higher is better
o3-pro
21 tok/s
Claude 4.1 Opus (Reasoning)
40 tok/s
Time to First Token (seconds) — lower is better
o3-pro
89.23s
Claude 4.1 Opus (Reasoning)
9.31s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
40.742.0
Coding Index
36.5
Math Index
80.3
GPQA Diamond
84.5%80.9%
MMLU-Pro
88.0%
LiveCodeBench
65.4%
AIME 2025
80.3%
MATH-500
Humanity's Last Exam
11.9%
SciCode
40.9%
IFBench
55.4%
TerminalBench
34.3%
o3-pro1 wins
10 winsClaude 4.1 Opus (Reasoning)

Frequently Asked Questions

Which is cheaper, o3-pro or Claude 4.1 Opus (Reasoning)?

Claude 4.1 Opus (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $30.00/M tokens vs $35.00/M for o3-pro.

Which model performs better on benchmarks?

Claude 4.1 Opus (Reasoning) wins 10 out of 12 benchmarks compared to 1 for o3-pro. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Claude 4.1 Opus (Reasoning) generates tokens faster at 40 tok/s vs 21 tok/s. However, Claude 4.1 Opus (Reasoning) has lower time-to-first-token (9.31s vs 89.23s).

When should I use o3-pro vs Claude 4.1 Opus (Reasoning)?

Choose based on your priorities: Claude 4.1 Opus (Reasoning) for lower cost, Claude 4.1 Opus (Reasoning) for stronger benchmark performance, and Claude 4.1 Opus (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.