DeepSeek V4.1 Flash API Pricing
DeepSeek V4.1 Flash costs $0.30 per 1M input tokens and $1.20 per 1M output tokens. These rates were last verified on .
Published rates and billing units
| Billing dimension | USD list price |
|---|---|
| Input / 1M tokens | $0.30 |
| Cached input / 1M tokens | $0.006 |
| Output / 1M tokens | $1.20 |
Verified 2026-11-12 · Official source · Pricing methodology. Taxes, optional services and account-specific discounts are not included.
Cost examples
These examples use published list prices only. They exclude taxes, enterprise discounts, minimum charges, retries, batch discounts, and provider-specific billing rules.
1M input + 1M output
$1.50
A direct per-million comparison against every other text model.
100K input + 25K output
$0.06
A compact chat, summarization, or analysis workload.
10M input + 2M output
$5.40
A monthly production estimate for heavier RAG or agent traffic.
75% cached input + 250K output
$0.3795
Cached input is about 98% cheaper than standard input at list price.
Calculator for DeepSeek V4.1 Flash
Enter your own input, output, and cached-token assumptions. This calculator is preloaded with only DeepSeek V4.1 Flash, so the result stays focused on this model.
Input cost
$0.30
Output cost
$1.20
Total
$1.50
Price history
No list-price movement across 49 daily snapshots from 2026-09-24 to 2026-11-11.
When to use DeepSeek V4.1 Flash
Good fit
- reasoning-heavy prompts, planning, analysis, and multi-step tool use
- high-volume routing, classification, extraction, summaries, and fallback traffic
Be careful with
- decisions that depend on unpublished context-window limits without checking the provider docs first