DeepSeek V3.1 Terminus API pricing
4 providers serve DeepSeek V3.1 Terminus. DeepSeek V3.1 Terminus is a proprietary API model, up to 164K context. Prices below are per 1M tokens, cheapest input first.
Refreshed 2026-08-23 · list prices from provider APIs| Provider | Input $/1M | Output $/1M | Cache read $/1M | Context | |
|---|---|---|---|---|---|
| DeepInfra | $0.270 | $1.00output floor | $0.216 | 164K | Use |
| Novita AI | $0.270 | $1.00 | $0.135 | 131K | Use |
| OpenRouter marketplace quote | $0.270 | $1.00 | $0.135 | 164K | Use |
| Fireworks AI | $0.560 | $1.68 | - | 128K | Use |
The cheapest way to run DeepSeek V3.1 Terminus
On an illustrative 70M-input / 30M-output monthly workload, today's lowest listed cost is roughly $48.90/month — the same at DeepInfra, Novita AI and OpenRouter. Input-heavy, output-heavy and cache-heavy workloads can produce different winners. Use the live mix calculator below rather than combining floors from two different providers. It is API-only, so the table above is your full set of options. Run your own numbers in the breakeven calculator, or read the breakeven math.
Your actual monthly cost
Cache read uses the listed cache rate where available; otherwise it falls back to normal input price. Batch, write-cache, volume and negotiated discounts are excluded.
Related models
| Model | Cheapest in $/1M | Cheapest out $/1M | Providers |
|---|---|---|---|
| DeepSeek R1 | $0.200 | $0.400 | 17 |
| DeepSeek V3 | $0.200 | $0.200 | 16 |
| DeepSeek R1 Distill Llama 70B | $0.200 | $0.375 | 10 |
| DeepSeek V3.2 | $0.269 | $0.400 | 9 |
| DeepSeek-V3.1 | $0.270 | $1.00 | 9 |
| DeepSeek V4 Flash | $0.050 | $0.101 | 9 |
FAQ
What is the cheapest API for DeepSeek V3.1 Terminus?
As of 2026-08-23, the lowest input price for DeepSeek V3.1 Terminus, $0.270 per 1M tokens, is the same list price at DeepInfra, Novita AI and OpenRouter. The lowest output price, $1.00 per 1M tokens, is likewise shared by the same providers. The cheapest provider for a real workload depends on its input/output mix. The next-lowest input price is Fireworks AI at $0.560, a 107% difference.
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