GPT-5.4 mini vs Claude Haiku 5.5: cost

For a typical support chatbot, Claude Haiku 5.5 is about 8.6× cheaper than GPT-5.4 mini ($38.51 vs $332 per month). Price is only one factor: test both on your own prompts before switching.

GPT-5.4 mini vs Claude Haiku 5.5: prices and limits
GPT-5.4 miniClaude Haiku 5.5
Input /1M$0.75$0.10
Output /1M$4.50$0.50
Cached input /1M$0.075$0.01
Batch input /1M$0.375$0.05
Batch output /1M$2.25$0.25
Context window400,0001,000,000
Max input272,0001,000,000
Max output128,000128,000

Monthly cost by workload

Estimated monthly cost by workload (USD)
Scenario (per month)GPT-5.4 miniClaude Haiku 5.5
Customer support chatbot
5,000 req/day · 1,200 in · 400 out · cache 60%		$332$38.51
RAG over documents
2,000 req/day · 8,000 in · 600 out · cache 30%		$425$53.64
Coding agent
1,500 req/day · 25,000 in · 2,000 out · cache 80%		$641$79.31
Deep reasoning
800 req/day · 3,000 in · 6,000 out · cache 20%		$692$77.90
Batch processing
50,000 req/day · 1,500 in · 150 out · batch		$1,350$169