DeepSeek model
DeepSeek V3.1 Terminus API cost calculator
DeepSeek V3.1 Terminus costs $0.27 per 1M input tokens and $1 per 1M output tokens on the DeepSeek API, with a 164K-token context window. A typical request (2K input, 500 output tokens) costs $0.0010 — about $31.20/month at 1,000 requests per day. Use the calculator below to model your exact workload.
Find me a cheaper modelWhat real workloads cost on DeepSeek V3.1 Terminus
| Workload | Tokens (in / out) | Per request | Per 1K requests |
|---|---|---|---|
| Chatbot message | 500 / 300 | $0.0004 | $0.43 |
| RAG query with context | 4,000 / 500 | $0.0016 | $1.58 |
| Document summarization | 20,000 / 1,000 | $0.0064 | $6.40 |
| Agent coding session | 100,000 / 5,000 | $0.03 | $32.00 |
DeepSeek V3.1 Terminus vs other DeepSeek models
| Model | Input /1M | Output /1M | Context |
|---|---|---|---|
| DeepSeek V3.1 Terminus | $0.27 | $1 | 164K |
| DeepSeek V4 Flash Vision Exp | $0.22 | $0.66 | 1.0M |
| DeepSeek V4 Pro 0813 | $1.19 | $3.56 | 1.0M |
| DeepSeek V4 Flash 0731 | $0.08 | $0.18 | 1.3M |
| DeepSeek V4 Pro 0423 | $1.60 | $3.20 |
Frequently asked questions
How much does DeepSeek V3.1 Terminus cost per 1M tokens?
According to current pricing data, DeepSeek V3.1 Terminus costs $0.27 per 1M input tokens and $1 per 1M output tokens. Processing 1M tokens each way costs $1.27.
What does a typical API request to DeepSeek V3.1 Terminus cost?
A typical request with 2,000 input tokens and 500 output tokens costs $0.0010. At 1,000 requests per day that is $1.04 daily, or about $31.20 per month.
What is DeepSeek V3.1 Terminus's context window?
DeepSeek V3.1 Terminus supports a 164K-token context window (163,840 tokens).
Does DeepSeek V3.1 Terminus support prompt caching?
Yes. Cached input tokens cost $0.14 per 1M — a 50% discount versus the standard input rate, which matters for agents and chat apps that resend the same system prompt.
What is a cheaper alternative to DeepSeek V3.1 Terminus?
Ling-2.6-flash from Inclusionai is currently the cheapest comparable option at $0.01 per 1M input tokens versus $0.27 for DeepSeek V3.1 Terminus — roughly 27x cheaper on input.
Prices may differ from DeepSeek's official pricing page for batch, tiered, or fine-tuned usage. Compare all current prices on the live model pricing dashboard, see DeepSeek V3.1 Terminus vs Ling-2.6-flash pricing, or run DeepSeek V3.1 Terminus head-to-head against other models in the side-by-side comparison playground.
Pricing data via the OpenRouter models API.