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

Claude 4.1 Opus (Reasoning)vso3-pro

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

Anthropic

Claude 4.1 Opus (Reasoning)

Input
$18.75/M
Output
$75/M
Speed
37 tok/s
TTFT
8.22s
OpenAI

o3-pro

Input
$20/M
Output
$80/M
Speed
26 tok/s
TTFT
86.76s

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 (10-1)
Claude 4.1 Opus (Reasoning)

Pricing Comparison

MetricClaude 4.1 Opus (Reasoning)o3-pro
Input ($/M tokens)$18.75$20
Output ($/M tokens)$75$80
Cost for 1M input + 100K output tokens:
Claude 4.1 Opus (Reasoning)$26.25
o3-pro$28.00

Speed Comparison

Output Speed (tokens/s) — higher is better
Claude 4.1 Opus (Reasoning)
37 tok/s
o3-pro
26 tok/s
Time to First Token (seconds) — lower is better
Claude 4.1 Opus (Reasoning)
8.22s
o3-pro
86.76s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
42.040.7
Coding Index
36.5
Math Index
80.3
GPQA Diamond
80.9%84.5%
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%
Claude 4.1 Opus (Reasoning)10 wins
1 winso3-pro

Frequently Asked Questions

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

Claude 4.1 Opus (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $32.81/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 37 tok/s vs 26 tok/s. Claude 4.1 Opus (Reasoning) also has lower time-to-first-token (8.22s vs 86.76s).

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

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.