AI Calculator Pro

DeepSeek V4.1 Flash Fast

DeepSeek · model · context window 1,048,576 tokens.

Pricing (per 1M tokens)

Input$0.3000
Output$1.20
Cache read$0.0000
Cache write$0.0900

Specifications

Context window1,048,576 tokens
Max output131,072 tokens
Modalitiestext
VisionNo
Tool useYes
ReasoningNo
Prompt cachingNo

Estimate cost with DeepSeek V4.1 Flash Fast

DeepSeek V4.1 Flash Fast is pre-selected below. Enter your token counts and volume to see the cost per request, per day and per month — then switch models to compare.

Results update automatically as you type.

Result
$0.000900 per request
~$27.00/month at 1,000 requests/day
Input cost
$0.000300
Output cost
$0.000600
Per request
$0.000900
Per day
$0.9000
Per month
$27.00

Source: community-hosted (cheapest of 3 providers, coralbricks via models.dev). Prices are re-checked daily against the provider’s official pricing; this rate was last changed on 6 October 2026. A recent date here just means the price is still current, not that it moved.