DeepSeek V4 Pro vs GPT-5.5: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
DeepSeek
DeepSeek V4 Pro
Pricing (per 1M tokens)
Input$1.74
Output$3.48
Cached Input$0.1450
Context & Output
Context Window1M tokens
Max Output384K tokens
Capabilities
Categoryflagship
Multimodaltext
Fine-tuningNo
StreamingYes
OpenAI
GPT-5.5
Pricing (per 1M tokens)
Input$5.00
Output$30.00
Cached Input$0.5000
Batch Input$2.50
Batch Output$15.00
Context & Output
Context Window1M tokens
Max Output128K tokens
Capabilities
Categoryflagship
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
DeepSeek V4 Pro
65.2% cheaper
Cheaper Output Price
DeepSeek V4 Pro
88.4% cheaper
Larger Context Window
GPT-5.5
+0 tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
DeepSeek V4 Pro
$5.22
$1.74/1M input + $3.48/1M output
GPT-5.5
$35.00
$5.00/1M input + $30.00/1M output
DeepSeek V4 Pro is 85.1% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, DeepSeek V4 Pro or GPT-5.5?
For input tokens, DeepSeek V4 Pro is cheaper at $1.74 per 1M tokens. For output tokens, DeepSeek V4 Pro is cheaper at $3.48 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of DeepSeek V4 Pro vs GPT-5.5?
DeepSeek V4 Pro has a context window of 1M tokens, while GPT-5.5 has 1M tokens. DeepSeek V4 Pro supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
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