DeepSeek V4 Pro vs Qwen3.5 Plus 2026-04-20
Input price
$0.44
$0.30
Output price
$0.87
$1.80
Context window
1049K
1000K
Throughput
121 tok/s
165 tok/s
Availability
100.0%
99.8%
Cost / task
$0.001
$0.002
Efficiency score
96
95
Estimated monthly cost by workload
Metric
DEEPSEEK-V4-PR
QWEN3.5-PLUS-2
Chat assistant
$236.40
$306.00
RAG / long context
$606.30
$522.00
Agent / tool use
$630.00
$864.00
Efficiency score: DeepSeek V4 Pro
Across price, speed and reliability, DeepSeek V4 Pro offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.
Figures are illustrative demo data, not financial advice.
Frequently asked questions
Is DeepSeek V4 Pro or Qwen3.5 Plus 2026-04-20 cheaper?+
Qwen3.5 Plus 2026-04-20 has the lower input price — $0.30 vs $0.44 per 1M tokens — so for most blended workloads it is the more cost-effective of the two. Figures are illustrative demo data.
Which should I choose, DeepSeek V4 Pro or Qwen3.5 Plus 2026-04-20?+
Across price, speed and reliability, DeepSeek V4 Pro offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.