GPT-5.4 mini vs Claude Haiku 4.5: cost

For a typical support chatbot, GPT-5.4 mini is about 1.4× cheaper than Claude Haiku 4.5 ($332 vs $480 per month). Price is only one factor: test both on your own prompts before switching.

GPT-5.4 mini vs Claude Haiku 4.5: prices and limits
GPT-5.4 miniClaude Haiku 4.5
Input /1M$0.75$1.00
Output /1M$4.50$5.00
Cached input /1M$0.075$0.10
Batch input /1M$0.375$0.50
Batch output /1M$2.25$2.50
Context window400,000200,000
Max input272,000200,000
Max output128,00064,000

Monthly cost by workload

Estimated monthly cost by workload (USD)
Scenario (per month)GPT-5.4 miniClaude Haiku 4.5
Customer support chatbot
5,000 req/day · 1,200 in · 400 out · cache 60%
$332$480
RAG over documents
2,000 req/day · 8,000 in · 600 out · cache 30%
$425$536
Coding agent
1,500 req/day · 25,000 in · 2,000 out · cache 80%
$641$793
Deep reasoning
800 req/day · 3,000 in · 6,000 out · cache 20%
$692$792
Batch processing
50,000 req/day · 1,500 in · 150 out · batch
$1,350$1,687