Compare/GPT-4 vs Claude 4 Opus (Reasoning)

GPT-4vsClaude 4 Opus (Reasoning)

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

OpenAI

GPT-4

Input
$30/M
Output
$60/M
Speed
38 tok/s
TTFT
0.82s
Anthropic

Claude 4 Opus (Reasoning)

Input
$15/M
Output
$75/M
Speed
40 tok/s
TTFT
6.36s

Winner by Category

Cheaper
Claude 4 Opus (Reasoning)
Faster (tok/s)
Claude 4 Opus (Reasoning)
Lower Latency
GPT-4
Benchmarks (0-12)
Claude 4 Opus (Reasoning)

Pricing Comparison

MetricGPT-4Claude 4 Opus (Reasoning)
Input ($/M tokens)$30$15
Output ($/M tokens)$60$75
Cost for 1M input + 100K output tokens:
GPT-4$36.00
Claude 4 Opus (Reasoning)$22.50

Speed Comparison

Output Speed (tokens/s) — higher is better
GPT-4
38 tok/s
Claude 4 Opus (Reasoning)
40 tok/s
Time to First Token (seconds) — lower is better
GPT-4
0.82s
Claude 4 Opus (Reasoning)
6.36s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
12.839.0
Coding Index
13.134.0
Math Index
73.3
GPQA Diamond
79.6%
MMLU-Pro
87.3%
LiveCodeBench
63.6%
AIME 2025
73.3%
MATH-500
98.2%
Humanity's Last Exam
11.7%
SciCode
39.8%
IFBench
53.7%
TerminalBench
31.1%
GPT-40 wins
12 winsClaude 4 Opus (Reasoning)

Frequently Asked Questions

Which is cheaper, GPT-4 or Claude 4 Opus (Reasoning)?

Claude 4 Opus (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $30.00/M tokens vs $37.50/M for GPT-4.

Which model performs better on benchmarks?

Claude 4 Opus (Reasoning) wins 12 out of 12 benchmarks compared to 0 for GPT-4. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Claude 4 Opus (Reasoning) generates tokens faster at 40 tok/s vs 38 tok/s. GPT-4 also has lower time-to-first-token (0.82s vs 6.36s).

When should I use GPT-4 vs Claude 4 Opus (Reasoning)?

Choose based on your priorities: Claude 4 Opus (Reasoning) for lower cost, Claude 4 Opus (Reasoning) for stronger benchmark performance, and Claude 4 Opus (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.