DeepSeek V4 Pro vs GPT-6.1 Sol.
DeepSeek V4 Pro is 2.1x cheaper.
For a chatbot doing 100K requests a month with 1,000 input and 500 output tokens each: $330.00 vs $700.00.
DeepSeek
DeepSeek V4 Pro
| Input / 1M | $1.32 |
| Cached / 1M | $0.044 |
| Output / 1M | $3.96 |
| Context | 1M |
| Chatbot at 100K req/mo | $330.00 |
Source · Oct 20, 2026
OpenAI
GPT-6.1 Sol
| Input / 1M | $2.00 |
| Cached / 1M | $0.10 |
| Output / 1M | $10.00 |
| Context | — |
| Chatbot at 100K req/mo | $700.00 |
Source · Oct 20, 2026
Sponsored
Your API or dev tool here. Reach developers comparing model costs right now.Price isn't everything: check quality on your own prompts. DeepSeek V4 Pro wins on list price for this workload, but output-heavy jobs (long answers, agents, reasoning) shift the math toward whichever model has the lower output price, which here is DeepSeek V4 Pro.