Anthropic Claude Sonnet 5 VS OpenAI GPT-5.4 nano
Decision Recommendation
⚖️ Editorial Verdict: In our analysis, GPT-5.4 nano is the premium intelligence choice, scoring 10.8% higher on coding benchmarks. It also maintains strong cost efficiency. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Claude Sonnet 5 offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.4 nano fully justifies the cost.
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Model Specs
Claude Sonnet 5
Benchmarks & Scores
Coding (swe-bench-pro)Winner (+10.8%)
63.2%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
N/Agraduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$4.00Input: $2.00 | Output: $10.00Context WindowLarger
1.05M tokensModel Specs
GPT-5.4 nano
Benchmarks & Scores
Coding (swe-bench-pro)
52.4%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
82.8%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)8.6x cheaper
$0.46Input: $0.20 | Output: $1.25Context Window
400k tokensFrequently Asked Questions about Claude Sonnet 5 vs GPT-5.4 nano comparison
GPT-5.4 nano is cheaper than Claude Sonnet 5. GPT-5.4 nano has a blended cost of $0.46/1M tokens, which is about 8.6x cheaper than Claude Sonnet 5 at $4.00/1M tokens.
Claude Sonnet 5 is better for coding tasks on this benchmark. It scores 63.2% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) compared to GPT-5.4 nano which scores 52.4%.
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