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DeepSeek V3.1

  • Tool calling
  • JSON schema
  • Streaming
  • Open weights
  • Runs on DeepInfra

Model id

deepseek/deepseek-v3.1
APITry this model
Context window
164K
tokens
Input price
$0.25
per 1M tokens
Output price
$0.95
per 1M tokens
Max output
Provider
no narrower limit

Provider list price

Pricing

USD / 1M tokens

Input$0.25 / M tokens
Output$0.95 / M tokens
Cache read$0.13 / M tokens
Context window164K tokens
RoutingFree

Provider list price. BYOK bills your provider; managed credits draw down at these rates. No markup or request fee. Every request is metered per engineer and joined to shipped work.

Registry 2026-10-21.3 · effective 9/17/2026 · Private rate card. Source withheld.

Registry contract

Capabilities

Protocols
3
Chat · Responses · Messages · streaming
Tools
2
Chat · Messages
JSON Schema
2
Chat · Responses
Vision
No
Not supported
Reasoning
None
No public control
Output limit
Provider
No narrower TokenSpend limit

canonical deepseek/deepseek-v3.1 · revision deepseek/deepseek-v3.1 · aliases deepseek-ai/DeepSeek-V3.1, deepseek-v3.1

First request

Run it

Python · TokenSpend SDK
from tokenspend import TokenSpend

client = TokenSpend()
resp = client.chat.completions.create(
    model="deepseek/deepseek-v3.1",
    messages=[{"role": "user", "content": "hello"}],
)
TypeScript · TokenSpend SDK
import { TokenSpend } from "@tokenspend/sdk";

const client = new TokenSpend();
const resp = await client.chat.completions.create({
  model: "deepseek/deepseek-v3.1",
  messages: [{ role: "user", content: "hello" }]
});
curl
curl https://api.tokenspend.dev/v1/chat/completions \
  -H "content-type: application/json" \
  -H "Authorization: Bearer $TOKENSPEND_API_KEY" \
  -d '{"model":"deepseek/deepseek-v3.1","messages":[{"role":"user","content":"hello"}]}'
Claude Code integration
export ANTHROPIC_BASE_URL=https://api.tokenspend.dev
export ANTHROPIC_API_KEY=$TOKENSPEND_API_KEY
export ANTHROPIC_MODEL=deepseek/deepseek-v3.1

One request shape reaches every model. Claude Code connects as an integration with two environment variables. TokenSpend never stores prompts or responses.

Questions

Who runs DeepSeek V3.1?

DeepInfra runs it, at the list price above. A request that fails there fails with an error, because there is no second provider to move to.

What does DeepSeek V3.1 cost?

$0.25 per 1M input tokens and $0.95 per 1M output tokens. TokenSpend adds no markup and no per-request fee. If you pay with managed credits, buying them carries a 5% fee.

What can I do with DeepSeek V3.1 through TokenSpend?

Chat and streaming, plus tool calling (Chat, Messages) and JSON schema output (Chat, Responses). It does not support image input here. Tool calling and JSON schema are enabled per provider, only after that provider passes our tests, so a provider chosen by hand may lack them.

How long can my prompt be?

164K tokens of context, prompt and reply together.

Does prompt caching make DeepSeek V3.1 cheaper?

Yes, when the provider caches a repeated prompt prefix. Cached input is billed at $0.13 per 1M tokens instead of $0.25.

How current is this pricing?

It follows rate card 2026-10-21.3, effective 9/17/2026. Source: Private rate card.