Current price verification is unresolved or overdue. These are the last recorded rates; check the official source before budgeting. We do not relabel an old check with today's build date.
DeepSeek V4.1 Flash API Pricing
DeepSeek V4.1 Flash costs $0.15 per 1M input tokens and $0.60 per 1M output tokens. These rates were last verified on .
DeepSeek V4.1 Flash: current and scheduled rates
Rates effective since September 10, 2026 at 4:00 AM UTC. Prices are USD per 1M tokens.
| Model | Rate period | Input | Cached | Output | Input / output vs current |
|---|---|---|---|---|---|
| DeepSeek V4.1 Flash | Off-peak baseline | $0.15 | $0.0030 | $0.6 | Comparison baseline |
| DeepSeek V4.1 Flash | Off-peak | $0.15 | $0.0030 | $0.6 | No change / No change |
| DeepSeek V4.1 Flash | Peak | $0.3 | $0.0060 | $1.20 | 100% higher / 100% higher |
DeepSeek V4.1 Flash: Peak windows: 01:00-04:00 and 06:00-10:00 UTC. Peak days (UTC): Monday, Tuesday, Wednesday, Thursday, Friday. Weekends and Chinese public holidays are off-peak in full. All other hours are off-peak.
Built from the scheduled rate card in the canonical pricing API.
Published rates and billing units
| Billing dimension | USD list price |
|---|---|
| Input / 1M tokens | $0.15 |
| Cached input / 1M tokens | $0.003 |
| Output / 1M tokens | $0.60 |
Verified 2026-11-04 · 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
$0.75
A direct per-million comparison against every other text model.
100K input + 25K output
$0.03
A compact chat, summarization, or analysis workload.
10M input + 2M output
$2.70
A monthly production estimate for heavier RAG or agent traffic.
75% cached input + 250K output
$0.1898
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
$0.15
Output cost
$0.60
Total
$0.75
Estimates use the current listed rates, not future rates. Token estimates use the off-peak reference, not an all-hours quote. Peak: $0.3 input / $0.006 cached input / $1.2 output per 1M tokens during 01:00-04:00 and 06:00-10:00 UTC, on Monday through Friday. Weekends and Chinese public holidays are off-peak in full. Separate per-request tool fees are excluded. Cache storage and other non-token fees are excluded.
Price history
input moved from $0.14 to $0.15 and output moved from $0.28 to $0.60 across 201 daily snapshots.
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
- long-document and repository-scale prompts where context window matters
Be careful with
- blind migration without testing your own prompts, latency, and failure modes