GPT-5 mini vs DeepSeek V4 Pro
OpenAI's budget model vs DeepSeek's champion. GPT-5 mini is 43% cheaper on input, but DeepSeek V4 Pro is 57% cheaper on output — with 3.7× more context. The winner depends on your usage.
Pricing data verified: 2026-06-20
| Specification | GPT-5 mini (OpenAI) | DeepSeek V4 Pro (DeepSeek) |
|---|---|---|
| Input Price (per 1M tokens) | $0.250 | $0.435 |
| Output Price (per 1M tokens) | $2.00 | $0.870 |
| Context Window | 272K | 1M |
| Tier | Budget | Budget |
| Provider | OpenAI | DeepSeek |
Calculate Your Exact Costs
See how the costs stack up for your specific usage pattern.
Other Models to Consider
Which Model for Which Use Case?
Output-Heavy Chatbots
DeepSeek V4 Pro's 57% cheaper output pricing and 1M context window make it the better choice for conversational AI with long context.
Input-Heavy Classification
GPT-5 mini's 43% cheaper input pricing wins for bulk text classification, sentiment analysis, or data labeling where output is minimal.
Content Generation
DeepSeek V4 Pro's cheaper output and larger context window handle long-form content generation more cost-effectively.
OpenAI Ecosystem
If you're already on OpenAI's platform with function calling, Assistants API, and fine-tuning, GPT-5 mini offers seamless integration.
Comparing OpenAI and DeepSeek?
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Frequently Asked Questions
Which is cheaper: GPT-5 mini or DeepSeek V4 Pro?
It depends on your usage. GPT-5 mini is 43% cheaper on input ($0.25/M vs $0.435/M), but DeepSeek V4 Pro is 57% cheaper on output ($0.87/M vs $2.00/M). For output-heavy workloads, DeepSeek wins. For input-heavy, GPT-5 mini wins.
Which has a better context window?
DeepSeek V4 Pro has a 1M token context window — 3.7× larger than GPT-5 mini's 272K. For long documents or extended conversations, DeepSeek handles significantly more context.
When should I pick GPT-5 mini?
Choose GPT-5 mini if you need OpenAI's ecosystem integration, prefer a US-based provider, or have input-heavy workloads (classification, analysis) where output tokens are minimal.
When should I pick DeepSeek V4 Pro?
Choose DeepSeek V4 Pro for output-heavy workloads (content generation, chatbots), when you need a larger context window (1M vs 272K), or when overall cost matters most. DeepSeek typically wins on total cost.