DeepSeek: DeepSeek V4 Flash 0731 vs Qwen: Qwen3.8 Max (0902): Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing DeepSeek: DeepSeek V4 Flash 0731 (deepseek/deepseek-v4-flash-0731) vs Qwen: Qwen3.8 Max (0902) (qwen/qwen3.8-max-0902). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
DeepSeek: DeepSeek V4 Flash 0731 (deepseek/deepseek-v4-flash-0731) — Automatic Disk KV Cache ($0.008/1M) & 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.
Qwen: Qwen3.8 Max (0902) (qwen/qwen3.8-max-0902) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Qwen: Qwen3.8 Max (0902): Activate ephemeral prefix caching to slash input costs by 50% (down to $1/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing DeepSeek: DeepSeek V4 Flash 0731 (API ID: deepseek/deepseek-v4-flash-0731) vs Qwen: Qwen3.8 Max (0902) (API ID: qwen/qwen3.8-max-0902), DeepSeek: DeepSeek V4 Flash 0731 offers lower standard input pricing at $0.016/1M tokens ($0.64/1M output), while DeepSeek: DeepSeek V4 Flash 0731 leads in cached prefix economics at $0.008/1M tokens (50% discount). DeepSeek: DeepSeek V4 Flash 0731 achieves a 0ms faster P90 time-to-first-token latency (280ms vs 280ms).
Auto-discovered via live global telemetry registry.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | DeepSeek: DeepSeek V4 Flash 0731 | Qwen: Qwen3.8 Max (0902) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | deepseek/deepseek-v4-flash-0731 | qwen/qwen3.8-max-0902 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.016 / $0.64 | $2 / $6 | DeepSeek: DeepSeek V4 Flash 0731 |
| Cache Read Price (per 1M) | $0.008/1M (50% Off) | $1/1M (50% Off) | DeepSeek: DeepSeek V4 Flash 0731 |
| Context Window / Max Output | 1024K In / 922K Out | 977K In / 128K Out | DeepSeek: DeepSeek V4 Flash 0731 |
| P90 First-Token / Edge Latency | 280ms | 280ms | DeepSeek: DeepSeek V4 Flash 0731 (-0ms) |
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoni
Qwen3.8 Max 0902 is an updated snapshot of Qwen3.8 Max from Alibaba's Qwen team. It is a 2.4-trillion-parameter mixture-of-experts model that accepts text, image, and video input a
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 Flash 0731 to Qwen: Qwen3.8 Max (0902)
Qwen3.8 Max 0902 is an updated snapshot of Qwen3.8 Max from Alibaba's Qwen team. It is a 2.4-trillion-parameter mixture-of-experts model that accepts text, image, and video input a Verified P90 latency of 280ms.