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DeepSeek: DeepSeek V4 Pro 0813 Thinking

deepseek-v4-pro-0813:thinking

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DeepSeek V4 Pro 0813 Thinking costs $0.858 per million input tokens and $3.25 per million output tokens, supports 1.05M context, and is available through the OpenAI-compatible API.

DeepSeek V4 Pro 0813 Thinking enables reasoning by default on the general-availability release of DeepSeek V4 Pro, built for coding, tool use, cybersecurity, automation, and long-horizon agent workflows. DeepSeek reports strong gains over the preview and scores above Opus 4.8 on Terminal Bench 2.1, Cybergym, DeepSWE, and AutomationBench. It supports a 1M-token context window.

Modalities

Text → Text

Input / output price

$0.858 / $3.25 per 1M

Context

1.05M · max output 384K

Capabilities

ReasoningTool callingLong contextOpen weights

Pricing

Billed per token actually used and deducted from your credits.

ItemUSD per 1M tokens
Input$0.858
Output$3.25
Cached input$0.052

Calculator

Drag the sliders to estimate what this model will cost.

Per request
$0.00517
Per day
$2.59
Per month (30 days)
$77.61

DeepSeek V4 Pro 0813 Thinking: input $0.858/M · output $3.25/M · cached input $0.052/M

Request with these settings
curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "deepseek-v4-pro-0813:thinking", "max_tokens": 800,
       "messages": [{"role": "user", "content": "…"}]}'

Code samples

OpenAI-compatible. Set the base URL to https://api.geniusrelaygpt.com/v1 and the model to deepseek-v4-pro-0813:thinking.

curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4-pro-0813:thinking",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Use it in a client: Cursor · Cline · SillyTavern · Codex

Parameters

Common OpenAI parameters can be passed as-is.

temperaturetop_pmax_tokensstreamstoppresence_penaltyfrequency_penaltyseed

FAQ

How is DeepSeek V4 Pro 0813 Thinking billed?
Input is $0.858 and output is $3.25 per million tokens; cached input is $0.052. The charge for every request is listed in Usage Logs in the console.
How long is the context window?
1.05M tokens. In a long conversation every turn is billed for the full input, so keep the history under control.
Does it support streaming?
Yes. Add "stream": true to the request to receive server-sent events in the OpenAI format.
DeepSeek V4 Pro 0813 Thinking API pricing · GeniusRelay