Compare/claude-4-6-opus vs GPT-5.4 (xhigh)

claude-4-6-opusvsGPT-5.4 (xhigh)

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

claude-4-6-opus

Input
Output
Speed
TTFT
OpenAI

GPT-5.4 (xhigh)

Input
$2.5/M
Output
$15/M
Speed
84 tok/s
TTFT
147.97s

Winner by Category

Cheaper
GPT-5.4 (xhigh)
Faster (tok/s)
GPT-5.4 (xhigh)
Lower Latency
GPT-5.4 (xhigh)
Benchmarks (0-7)
GPT-5.4 (xhigh)

Pricing Comparison

Metricclaude-4-6-opusGPT-5.4 (xhigh)
Input ($/M tokens)$2.5
Output ($/M tokens)$15
Cost for 1M input + 100K output tokens:
GPT-5.4 (xhigh)$4.00

Speed Comparison

Output Speed (tokens/s) — higher is better
claude-4-6-opus
GPT-5.4 (xhigh)
84 tok/s
Time to First Token (seconds) — lower is better
claude-4-6-opus
GPT-5.4 (xhigh)
147.97s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
57.2
Coding Index
57.3
Math Index
GPQA Diamond
92.0%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
41.6%
SciCode
56.6%
IFBench
73.9%
TerminalBench
57.6%
claude-4-6-opus0 wins
7 winsGPT-5.4 (xhigh)

Frequently Asked Questions

Which is cheaper, claude-4-6-opus or GPT-5.4 (xhigh)?

GPT-5.4 (xhigh) is cheaper overall. Its blended price (3:1 input/output ratio) is $5.63/M tokens vs $—/M for claude-4-6-opus.

Which model performs better on benchmarks?

GPT-5.4 (xhigh) wins 7 out of 12 benchmarks compared to 0 for claude-4-6-opus. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-5.4 (xhigh) generates tokens faster at 84 tok/s vs — tok/s. However, GPT-5.4 (xhigh) has lower time-to-first-token (147.97s vs —s).

When should I use claude-4-6-opus vs GPT-5.4 (xhigh)?

Choose based on your priorities: GPT-5.4 (xhigh) for lower cost, GPT-5.4 (xhigh) for stronger benchmark performance, and GPT-5.4 (xhigh) for faster generation. For latency-sensitive apps, check the TTFT comparison above.