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DeepSeek V3.1 Terminus

DeepSeekOpen weights164K contextTool callingReasoning

LMArena score 1419 · #118 overall · #142 in coding (2026-10-13)

As of Oct 14, 2026, DeepSeek V3.1 Terminus costs $0.27 per million input tokens and $1.00 per million output tokens from DeepInfra. The cheapest of 4 sellers is DeepInfra at $0.27 / $1.00.

Lowest price, from DeepInfra

Per million tokens

Input
$0.27
Output
$1.00
Cached input
$0.216
Batch input / output
—
  • Up to 164K output tokens per request.

Estimate your monthly cost

Est. per month = input tokens × input price + output tokens × output price. Prices are per million tokens, so 10M input tokens at $3.00 cost $30.

From DeepInfra: $4.70 a month.

Where to buy it (4)

Sorted by your monthly estimate. Prices per million tokens.

  • DeepInfra

    Input / output
    $0.27 / $1.00
    Context
    164K
    Per month
    $4.70

    deepinfra/deepseek-ai/DeepSeek-V3.1-Terminus

  • Novita AI

    Input / output
    $0.27 / $1.00
    Context
    131K
    Per month
    $4.70

    novita/deepseek/deepseek-v3.1-terminus

  • OpenRouter

    Input / output
    $0.27 / $1.00
    Context
    164K
    Per month
    $4.70

    deepseek/deepseek-v3.1-terminus

  • SiliconFlow

    Input / output
    $0.27 / $1.00
    Context
    164K
    Per month
    $4.70

    deepseek-ai/DeepSeek-V3.1-Terminus

Cloud and hosted sellers may add regional pricing, minimums or platform fees. Supports: Tool calling, Reasoning.

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