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Anthropic

Claude Sonnet 4.6

VS
OpenAI

GPT-5.4 Pro

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Claude Sonnet 4.6 is the premium intelligence choice, scoring 0.0% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: GPT-5.4 Pro is 43.6x cheaper to run and delivers 2.5x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, GPT-5.4 Pro offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Claude Sonnet 4.6 fully justifies the cost.

Model Specs

Claude Sonnet 4.6

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)Winner (+12.3%)
79.9%

Cost & Performance

Cost (per 1M tokens)
$6.00Input: $3.00 | Output: $15.00
Speed
54.3 tps
Context WindowLarger
1M tokens
Model Specs

GPT-5.4 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
67.6%

Cost & Performance

Cost (per 1M tokens)43.6x cheaper
$0.14Input: $0.05 | Output: $0.40
Speed2.5x faster
137 tps
Context Window
400k tokens
Read our data collection methodology

Frequently Asked Questions

GPT-5.4 Pro is cheaper than Claude Sonnet 4.6. GPT-5.4 Pro has a blended cost of $0.14/1M tokens, which is about 43.6x cheaper than Claude Sonnet 4.6 at $6.00/1M tokens.

GPT-5.4 Pro is faster than Claude Sonnet 4.6. GPT-5.4 Pro generates 137 tokens per second (tps) compared to Claude Sonnet 4.6 which generates 54.3 tokens per second.

Coding benchmark scores are not currently recorded for these models.

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