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Anthropic

Claude Haiku 4.5

VS
OpenAI

GPT-5.4 nano

Decision Recommendation

👑 GPT-5.4 nano strictly dominates Claude Haiku 4.5 across all metrics. It is cheaper, faster, and smarter. There is no major reason to choose Claude Haiku 4.5 over it.

Model Specs

Claude Haiku 4.5

Benchmarks & Scores

Coding (swe-bench-pro)
39.5%
Reasoning (gpqa-diamond)
73%

Cost & Performance

Cost (per 1M tokens)
$2.00Input: $1.00 | Output: $5.00
Speed
98.5 tps
Context Window
200k tokens
Model Specs

GPT-5.4 nano

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+12.9%)
52.4%
Reasoning (gpqa-diamond)Winner (+8.7%)
81.7%

Cost & Performance

Cost (per 1M tokens)4.3x cheaper
$0.46Input: $0.20 | Output: $1.25
Speed1.9x faster
191 tps
Context WindowLarger
400k tokens

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