DeepSeek V3.1 API pricing: provider comparison (Polza.ai is 29% above the official list)
DeepSeek V3.1 costs $0.270/$1.10 per 1M tokens from DeepSeek. The lowest quote in the index is Polza.ai: $0.360 in, $1.37 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | Discount | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $0.270 | $1.10 | 0% | 245M |
| 1 | $0.360 | $1.37 | +29% | 190M |
Tokens per $100 assume a “code” mix: 5 input tokens per output token. Prices are crawled; verify them on the provider page before buying.
What to check before buying
- Test the key with the free API checker — it verifies the endpoint responds, without sending tokens.
- Compare the blended cost for your workload, not just the input price: output tokens dominate in agent workloads.
- Check uptime and minimum top-up: the cheapest provider is useless if it is down half the day.