DeepSeek V4 Flash vs GPT-5
Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, DeepSeek V4 Flash is cheaper by about $597.00/month.
| DeepSeek V4 Flash | GPT-5 | |
|---|---|---|
| Provider | deepseek | openai |
| Input / 1M | $0.1400 | $1.25 |
| Output / 1M | $0.2800 | $10.00 |
| Per request (sample) | $0.000280 | $0.00625 |
| Monthly (sample) | $28.00 | $625.00 |
| Context window | 1,000,000 | 128,000 |
| Vision | No | Yes |
| Reasoning | No | Yes |
FAQ
Which is cheaper, DeepSeek V4 Flash or GPT-5?
For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, DeepSeek V4 Flash is cheaper, costing about $28.00/month versus $625.00/month.
What is the context window of DeepSeek V4 Flash and GPT-5?
DeepSeek V4 Flash supports 1,000,000 tokens, while GPT-5 supports 128,000 tokens.
Estimates for planning only. Verify current pricing with each provider.