DeepSeek V3.1 Terminus API pricing
$1.08 in, $4.00 out per million tokens.
deepseek-v3.1-terminusmanaged routeOpenAI SDK
Price · per million tokens, USD
Get a key| Tokens | DeepSeek list price | UplinkSwitch | Saving |
|---|---|---|---|
| Input | — | $1.08 | — |
| Cached input | Billed at the input rate. | ||
| Output | — | $4.00 | — |
No list price on record.
Real-model check: Steady since Oct 20
DeepSeek V3.1 Terminus: what it is · from DeepSeek’s own model card, read 2026-10-20
An update of V3.1 that keeps its abilities and fixes what users reported: fewer mixed Chinese-English replies and stray characters, and better code and search agents. It is served as deepseek-v3.1-terminus at $1.08 input and $4.00 output per million tokens, on the same key as every other model in the catalog.
| DeepSeek V3.1 Terminus | |
|---|---|
| Developer | DeepSeek |
| Parameters | 671B total, 37B active per token |
| Context | 128K tokens |
| License | MIT |
| Published | 2025-09-22 |
| Downloads, 30 days to 2026-10-20 | 16,306 |
| Source | deepseek-ai/DeepSeek-V3.1-Terminus |
From deepseek-ai/DeepSeek-V3.1-Terminus, read 2026-10-20.
curl
curl https://api.uplinkswitch.com/v1/chat/completions \
-H "authorization: Bearer sk-uplink-live-..." \
-H "content-type: application/json" \
-d '{"model":"deepseek-v3.1-terminus","max_tokens":1024,"messages":[{"role":"user","content":"Hello"}]}'DeepSeek V3.1 Terminus next to DeepSeek’s other models · per million tokens, live
| Model | Here, in / out | 1,000 chat turns |
|---|---|---|
| DeepSeek V4 Flash 0423 | $0.0279 / $0.1116 | $0.11 |
| DeepSeek V4.1 Flash 1017 | $0.0437 / $0.1746 | $0.17 |
| DeepSeek V4.1 Flash | $0.06 / $0.18 | $0.21 |
| DeepSeek V4 Flash 0731 | $0.084 / $0.12 | $0.23 |
| DeepSeek V4 Flash Vision Exp | $0.21 / $0.84 | $0.84 |
| DeepSeek V4 Flash 0731 Uncensored | $0.4365 / $1.746 | $1.75 |
| DeepSeek V4 Pro 0813 | $0.792 / $1.188 | $2.18 |
| DeepSeek V4.1 Flash Abliterated | $0.8488 / $1.6975 | $2.55 |
| DeepSeek V4 Pro 0423 | $0.792 / $2.376 | $2.77 |
| DeepSeek V3.2 Exp | $1.08 / $1.64 | $2.98 |
| DeepSeek V3.2 | $1.08 / $1.68 | $3.00 |
| DeepSeek V4 Pro Uncensored | $1.00 / $2.00 | $3.00 |
| DeepSeek V3 | $1.00 / $4.00 | $4.00 |
| DeepSeek V3.1 | $1.08 / $4.00 | $4.16 |
| DeepSeek V3.1 Terminus | $1.08 / $4.00 | $4.16 |
| DeepSeek V4.1 Flash Abliterated Fast | $1.75 / $3.50 | $5.25 |
| DeepSeek R1 | $2.00 / $8.72 | $8.36 |
A chat turn is 2,000 input and 500 output tokens. Live from the catalog, ordered by the cost of 1,000 turns.
Worked for DeepSeek V3.1 Terminus: 1,000 turns are 2,000,000 input tokens and 500,000 output tokens. At $1.08 input and $4.00 output per million tokens, that is $2.16 + $2.00 = $4.16, paid from prepaid credit with no subscription.
DeepSeek V3.1 Terminus API key · base URL and setup
- Create a key in the console at uplinkswitch.ai/console. Credit is prepaid from $10 with no subscription, and the key works at once.
- Point your SDK or tool at https://api.uplinkswitch.com/v1, for example with OPENAI_BASE_URL, and send the key as the bearer token.
- Send deepseek-v3.1-terminus as the model. The same key calls every other model in the catalog.
Python · OpenAI SDK
from openai import OpenAI
client = OpenAI(
base_url="https://api.uplinkswitch.com/v1",
api_key="sk-uplink-live-...",
)
completion = client.chat.completions.create(
model="deepseek-v3.1-terminus",
messages=[{"role": "user", "content": "Summarize this in one line."}],
)
print(completion.choices[0].message.content)TypeScript · OpenAI SDK
import OpenAI from 'openai';
const client = new OpenAI({
baseURL: 'https://api.uplinkswitch.com/v1',
apiKey: 'sk-uplink-live-...',
});
const completion = await client.chat.completions.create({
model: 'deepseek-v3.1-terminus',
messages: [{ role: 'user', content: 'Summarize this in one line.' }],
});
console.log(completion.choices[0].message.content);curl
curl https://api.uplinkswitch.com/v1/chat/completions \
-H "authorization: Bearer sk-uplink-live-..." \
-H "content-type: application/json" \
-d '{"model":"deepseek-v3.1-terminus","messages":[{"role":"user","content":"Hello"}]}'What would it cost? · paste a prompt, priced before you send it
Input is counted at about 4 characters per token.
Cheapest first. A real request is billed on the provider's own token count. Same estimate as JSON: POST https://api.uplinkswitch.com/v1/estimate, no key needed.
More from DeepSeek
DeepSeek V3.1 Terminus questions
DeepSeek V3.1 Terminus is a model from DeepSeek. Through UplinkSwitch it answers the OpenAI SDK on one key as deepseek-v3.1-terminus.
$1.08 per million input tokens and $4.00 per million output tokens.
It is pay as you go: prepaid credit from $10, with no subscription or monthly fee, billed per token. A 1,000-token prompt with a 500-token reply costs about $0.0031.
deepseek-v3.1-terminus. Send it as the model through the OpenAI SDK with base URL https://api.uplinkswitch.com/v1.
Create one in the console at uplinkswitch.ai/console: prepaid credit from $10, no subscription, and the key is live at once. The same key calls DeepSeek V3.1 Terminus and every other model in the catalog; send it as the bearer token with base URL https://api.uplinkswitch.com/v1.
Every day each model gets the same test prompt, and the results are public on /proof. DeepSeek V3.1 Terminus's latest result: Steady since Oct 20.
Yes: deepseek-v3.1-terminus on the OpenAI format at https://api.uplinkswitch.com/v1, $1.08 input and $4.00 output per million tokens. No weights to download and no GPU of your own; the key also runs every other model in the catalog.
671B total, 37B active per token, per deepseek-ai/DeepSeek-V3.1-Terminus.
128K tokens, per deepseek-ai/DeepSeek-V3.1-Terminus.
Its weights are open on Hugging Face (deepseek-ai/DeepSeek-V3.1-Terminus); the license is MIT.
$0.416 for 100 chat turns of 2,000 input and 500 output tokens each, at $1.08 input and $4.00 output per million tokens, from prepaid credit with no subscription.
Terminus is the September 2025 fix-up of V3.1, with steadier language and better agents. DeepSeek V3.1 Terminus is $1.08 / $4.00 per million tokens in / out, $4.16 for 1,000 chat turns; DeepSeek V3.1 is $1.08 / $4.00 per million tokens in / out, $4.16 for 1,000 chat turns. Both run on the same key, so send the same prompt to each.