Price comparison · checked October 12, 2026

Claude Haiku 5.5 vs DeepSeek V4.1 Flash pricing

For a typical support chatbot (60,000 conversations a month), Claude Haiku 5.5 costs $18.00 a month and DeepSeek V4.1 Flash costs $24.30. That makes Claude Haiku 5.5 1.4× cheaper for this workload.

Claude Haiku 5.5DeepSeek V4.1 Flash
ProviderAnthropicDeepSeek
Input / 1M$0.10$0.15
Cached input / 1M$0.010$0.003
Output / 1M$0.50$0.60
Context window1M1M
Notes5× price for prompts over 100K tokensOff-peak rate. Peak hours cost 2×

Monthly cost by workload

WorkloadClaude Haiku 5.5DeepSeek V4.1 FlashDifference
Support chatbot
60,000 req · 1,500 in / 300 out
$18.00$24.30Claude Haiku 5.5 1.4× cheaper
Document summaries
20,000 req · 6,000 in / 400 out
$16.00$22.80Claude Haiku 5.5 1.4× cheaper
Coding assistant
30,000 req · 4,000 in / 800 out
$24.00$32.40Claude Haiku 5.5 1.3× cheaper
RAG search
100,000 req · 2,500 in / 250 out
$37.50$52.50Claude Haiku 5.5 1.4× cheaper

Standard rates, no caching or batch discounts. Sources: api-docs.deepseek.com · platform.claude.com

Try your own numbers

Start from a use case

1,000 tokens is about 750 English words. Input includes your system prompt, chat history and any retrieved documents.

Claude Haiku 5.5
AnthropicCheapest
$18.00 /mo
DeepSeek V4.1 Flash
DeepSeek
$24.30 /mo

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