DeepSeek: DeepSeek V4.1 Flash 1017 vs DeepSeek R1: Live Promos, Pricing, Hidden Fees & Latency
DeepSeek: DeepSeek V4.1 Flash 1017 (deepseek/deepseek-v4.1-flash-1017) — Automatic Disk KV Cache (0.075/1M) & Off-Peak Promo
DeepSeek-V4 Pro (1.6T MoE) automatically caches repeated 64-token prompt prefixes on NVMe storage at $0.07/1M input tokens (50% off $0.14 base) with zero code changes required, plus off-peak UTC scheduling discounts.
DeepSeek R1 (deepseek/deepseek-r1) — Automatic Disk KV Cache (0.014/1M) & Off-Peak Promo
DeepSeek-V4 Pro (1.6T MoE) automatically caches repeated 64-token prompt prefixes on NVMe storage at $0.07/1M input tokens (50% off $0.14 base) with zero code changes required, plus off-peak UTC scheduling discounts.
In Etuki October 2026 FinOps telemetry comparing DeepSeek: DeepSeek V4.1 Flash 1017 (API ID: deepseek/deepseek-v4.1-flash-1017) vs DeepSeek R1 (API ID: deepseek/deepseek-r1), DeepSeek R1 offers lower standard input pricing at $0.14/1M tokens ($0.28/1M output), while DeepSeek R1 leads in cached prefix economics at $0.014/1M tokens (75% discount). DeepSeek R1 achieves a 135ms faster P90 time-to-first-token latency (145ms vs 280ms).
Auto-discovered via live global telemetry registry.
Automatic disk-KV caching cuts repeated prompt input costs by 90% ($0.014/1M) with zero manual configuration. Search/Fetch API billed separately at $0.75/1K calls.
| Specification / FinOps Dimension | DeepSeek: DeepSeek V4.1 Flash 1017 | DeepSeek R1 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | deepseek/deepseek-v4.1-flash-1017 | deepseek/deepseek-r1 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.15 / $0.6 | $0.14 / $0.28 | DeepSeek R1 |
| Cache Read Price (per 1M) | $0.075/1M (50% Off) | $0.014/1M (75% Off) | DeepSeek R1 |
| Context Window / Max Output | 1024K In / 384K Out | 1000K In / 128K Out | DeepSeek: DeepSeek V4.1 Flash 1017 |
| P90 First-Token / Edge Latency | 280ms | 145ms | DeepSeek R1 (-135ms) |
DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-ex
DeepSeek R1 (Oct 17, 2026 Pareto Update) delivers 77.0% on DeepSWE v1.1, 60.5% on Automation-Bench, native Search/Fetch API ($0.75/1K calls), and 90% auto disk-KV cache savings.
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🐋Switch from DeepSeek: DeepSeek V4.1 Flash 1017 to DeepSeek R1
DeepSeek R1 (Oct 17, 2026 Pareto Update) delivers 77.0% on DeepSWE v1.1, 60.5% on Automation-Bench, native Search/Fetch API ($0.75/1K calls), and 90% auto disk-KV cache savings. Verified P90 latency of 145ms.