DeepSeek V4 Pro vs GPT-6.1 Sol pricing
- For the Chatbot workload, DeepSeek V4 Pro costs 2.1× less than GPT-6.1 Sol.
- For the RAG workload, DeepSeek V4 Pro costs 1.7× less than GPT-6.1 Sol.
- For the Coding agent workload, DeepSeek V4 Pro costs 1.9× less than GPT-6.1 Sol.
Prices
| USD per 1M tokens | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| Input | $1.32 | $2.00 |
| Output | $3.96 | $10.00 |
| Cache read | $0.044 | $0.10 |
| Cache write | Not published | $2.50 |
| Batch input | Not published | $1.00 |
| Batch output | Not published | $5.00 |
| Off-peak input | $0.66 | Not published |
| Off-peak output | $1.98 | Not published |
| Off-peak cache read | $0.022 | Not published |
DeepSeek V4 Pro: The Input, Output and Cache read rows are the standard (peak) prices; the Off-peak rows apply at other times. Off-peak is every hour outside 01:00–04:00 and 06:00–10:00 UTC on weekdays, plus weekends and Chinese public holidays.
Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page
Monthly cost by workload
| Workload | DeepSeek V4 Pro | GPT-6.1 Sol |
|---|---|---|
| Chatbot1,000 in / 500 out tokens, 10,000 requests a day | $990.00/mo | $2,100/mo |
| RAG8,000 in / 500 out tokens, 5,000 requests a day | $1,881/mo | $3,150/mo |
| Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input | $686.40/mo | $1,320/mo |
Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.
Context and capabilities
| DeepSeek V4 Pro | GPT-6.1 Sol | |
|---|---|---|
| Context | 1,000,000 tokens | 1,050,000 tokens |
| Max output | 393,216 tokens | 128,000 tokens |
| Input | text | text, image, pdf |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
Questions
- What is the price difference between DeepSeek V4 Pro and GPT-6.1 Sol?
- DeepSeek V4 Pro: $1.32 per 1M input tokens and $3.96 per 1M output tokens. GPT-6.1 Sol: $2.00 per 1M input tokens and $10.00 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $990.00 per month for DeepSeek V4 Pro and $2,100 for GPT-6.1 Sol.
- Which has the longer context window, DeepSeek V4 Pro or GPT-6.1 Sol?
- GPT-6.1 Sol has the longer context window: up to 1,050,000 tokens, compared with 1,000,000 for DeepSeek V4 Pro.
- Do DeepSeek V4 Pro and GPT-6.1 Sol have prompt caching and batch prices?
- DeepSeek V4 Pro: cached input $0.044 per 1M tokens; no batch price published. GPT-6.1 Sol: cached input $0.10 per 1M tokens; batch $1.00 per 1M input tokens and $5.00 per 1M output tokens.